Esos codigos ya los tenía pero no me acuerdo como hice antes en el global.css que todo se redondeo así como soportemybb.
[Imagen: 1-62641.png]
[Imagen: 2-62642.png]
Acá te dejo mi global.css haber si me puedes ayudar .
/***************************************
	Nesil 1.0
	soniquake - huseyinemanet.com - hsynemanet@gmail.com
	09 Aralik 2010 Persembe
	ie7, ie8, ff, opera, chrome, safari
***************************************/
body {
	background: #d0d1c9 url(images/nesil/arkaplan.jpg) repeat;
	color: #333;
	font-family: Tahoma, Verdana, Arial, Sans-Serif;
	font-size: 13px;
	text-align: center;
	line-height: 1.6;
	margin: 0 0 25px 0;
}
a:link, a:visited {
	color: #1359AE;
	text-decoration: none;
	outline: 0;
}
a:hover, a:active {
	color: #C62222;
	text-decoration: underline;
	outline: 0;
}
#container {
	background: #fff;
	width: 950px;
	color: #333;
	border: 1px solid #5d5d5d;
	border-top: 0;
	margin: 0 auto;
	text-align: left;
}
#content {
	width: auto !important;
	padding: 15px 20px;
}
#panel {
	background: #efefef;
	color: #000;
	font-size: 11px;
	border: 1px solid #D4D4D4;
	padding: 8px;
}
table {
	color: #333;
	font-family: Tahoma, Verdana, Arial, Sans-Serif;
	font-size: 12px;
	line-height: 1.6;
}
.tborder {
 background: none repeat scroll 0 0 #DDDDDD;
    border: 1px solid #C0C0C0;
    margin: auto;
    padding: 3px;
    width: 100%;
}
acronym, abbr {
	cursor: help;
	border-bottom: 1px dashed #555;
}
.thead {
	background: #026cb1 url(images/nesil/menu_bg.png) repeat-x scroll left top;
	color: #FFFFFF;
	border-bottom: 1px solid #FFFFFF;
	padding: 7px 15px;
	-moz-border-radius-topleft: 6px;
	-moz-border-radius-topright: 6px;
	-webkit-border-top-left-radius: 6px;
	-webkit-border-top-right-radius: 6px;
	font-weight: bold;
}
.thead a:link, .thead a:visited {
	color: #fff;
	text-decoration: none;
}
.thead a:hover, .thead a:active {
	color: #fff;
	text-decoration: underline;
}
.tcat {
    background: url(http://www.alonegamerz.co.cc/images/nesil/alt_tablo.png) repeat-x scroll left top #ADCBE7;
    color: #000000;
    font-size: 12px;
}
.tcat a:link, .tcat a:visited, .tcat a:hover, .tcat a:active {
	color: #333;
}
.trow1 {
	background: #f5f5f5;
	border-bottom: 1px solid #e6e6e6;
	border-right: 1px solid #e6e6e6;
}
.trow2 {
	background: #efefef;
	border-bottom: 1px solid #e0e0e0;
	border-right: 1px solid #e6e6e6;
}
.trow_shaded {
	background: #ffdde0;
}
.trow_selected td {
	background: #FFFBD9;
	border-bottom: 1px solid #F7E86A;
}
.trow_sep {
	background: #f5f5f5 url(images/nesil/alt_tablo.png) top left repeat-x;
	color: #333;
	border-bottom: 1px solid #bebebe;
	font-size: 12px;
	font-weight: bold;
}
.tfoot {
	background: #026cb1 url(images/nesil/menu_bg.png) repeat-x scroll left top;
	color: #fff;
	padding: 7px 15px;
	border-top: 1px solid #bebebe;
	-moz-border-radius-bottomleft: 6px;
	-moz-border-radius-bottomright: 6px;
	-webkit-border-bottom-left-radius: 6px;
	-webkit-border-bottom-right-radius: 6px;
}
.tfoot a:link, .tfoot a:visited {
	color: #fff;
	text-decoration: none;
}
.tfoot a:hover, .tfoot a:active {
	color: #fff;
	text-decoration: underline;
}
.bottommenu {
	background: #f5f5f5 url(images/nesil/alt_tablo.png) top left repeat-x;
	color: #333;
	border-top: 1px solid #bebebe;
	padding: 6px;
}
.bottommenu div span.smalltext a {
	background-repeat: no-repeat;
	background-position: left;
	padding: 0 0 0 15px;
	margin-right: 15px;
	text-decoration: none;
}
.iletisim {background-image: url(images/nesil/ikon/iletisim.png);}
.anasayfa {background-image: url(images/nesil/ikon/anasayfa.png);}
.yukari {background-image: url(images/nesil/ikon/yukari.png);}
.arsiv {background-image: url(images/nesil/ikon/arsiv.png);}
.rss {background-image: url(images/nesil/ikon/rss.png);}
.navigation {
	color: #333;
	font-size: 11px;
	font-weight: bold;
}
.navigation a:link, .navigation a:visited {
	text-decoration: none;
}
.navigation a:hover, .navigation a:active {
	text-decoration: none;
}
.navigation .active {
	color: #333;
	font-size: 11px;
	font-weight: bold;
}
.smalltext {
	font-size: 11px;
}
.largetext {
	font-size: 16px;
	font-weight: bold;
}
textarea {
	background: #fff url(images/nesil/metinalani.gif) repeat-x scroll left top;
	border: 1px solid gray;
	padding: 0;
	line-height: 1.4;
	font-family: Verdana, Arial, Sans-Serif;
	font-size: 13px;
}
select {
	background: #fff;
	border: 1px solid gray;
}
.editor {
	background: #f1f1f1;
	border: 1px solid #ccc;
}
.editor_control_bar {
	background: #fff;
	border: 1px solid #0f5c8e;
}
.autocomplete {
	background: #fff;
	border: 1px solid #000;
	color: black;
}
.autocomplete_selected {
	background: #adcee7;
	color: #333;
}
.popup_menu .popup_item_container {
	margin: 1px;
	text-align: left;
}
.popup_menu .popup_item {
	background: #fff;
	display: block;
	text-decoration: none;
	white-space: nowrap;
	border: 1px solid #ccc;
	outline: 1px solid #f5f5f5;
	padding: 3px 13px;
}
.popup_menu a.popup_item:hover {
	background: #1192d5;
	color: #fff;
	text-decoration: none;
}
.trow_reputation_positive {
	background: #ccffcc;
}
.trow_reputation_negative {
	background: #ffcccc;
}
.reputation_positive {
	color: green;
}
.reputation_neutral {
	color: #444;
}
.reputation_negative {
	color: red;
}
.invalid_field {
	border: 1px solid #f30;
	color: #f30;
}
.valid_field {
	border: 1px solid #0c0;
}
.validation_error {
	background: url(images/invalid.gif) no-repeat center left;
	color: #f30;
	margin: 5px 0;
	padding: 5px;
	font-weight: bold;
	font-size: 11px;
	padding-left: 22px;
}
.validation_success {
	background: url(images/valid.gif) no-repeat center left;
	color: #00b200;
	margin: 5px 0;
	padding: 5px;
	font-weight: bold;
	font-size: 11px;
	padding-left: 22px;
}
.validation_loading {
	background: url(images/spinner.gif) no-repeat center left;
	color: #555;
	margin: 5px 0;
	padding: 5px;
	font-weight: bold;
	font-size: 11px;
	padding-left: 22px;
}
/* Additional CSS (Master) */
img {
	border: none;
	vertical-align: middle;
}
.clear {
	clear: both;
}
.hidden {
	display: none;
	float: none;
	width: 1%;
}
.hiddenrow {
	display: none;
}
.selectall {
	background-color: #FFFBD9;
	font-weight: bold;
	text-align: center;
}
.float_left {
	float: left;
}
.float_right {
	float: right;
}
.expcolimage {
	float: right;
	width: auto;
	vertical-align: middle;
	margin-top: 3px;
}
img.attachment {
	border: 1px solid #E9E5D7;
	padding: 2px;
}
hr {
	background-color: #000;
	color: #000;
	height: 1px;
	border: 0;
}
#copyright {
	background: #182846 url(images/nesil/menu_bg.png) repeat-x scroll left top;
	color: #fff;
	margin: 0;
	padding: 6px;
	border-top: 1px solid #003366;
}
#copyright a {
	color: #fff;
	font-weight: bold;
}
#debug {
	float: right;
	text-align: right;
	margin-top: 0;
}
blockquote {
	background: #fafcfe;
	margin: 0;
	padding: 4px;
	border-left: 4px solid #8394B2;
	border-top: 1px dotted #333;
	border-right: 1px dotted #333;
	border-bottom: 1px dotted #333;
}
blockquote cite {
	background: #fafcfe url(images/nesil/alinti.gif) no-repeat right center;
	display: block;
	padding: 3px;
	font-style: normal;
	font-weight: bold;
}
blockquote cite span {
	float: right;
	font-weight: normal;
}
.codeblock {
	background: #fafcfe;
	margin: 0 auto;
}
.codeblock .title {
	background: #fddbcc url(images/nesil/kod.gif) no-repeat right;
	border-bottom: 1px solid #ccc;
	padding: 3px;
	margin: 0 auto;
	font-weight: bold;
}
.codeblock code {
	color: #465584;
	overflow: auto;
	height: auto;
	max-height: 200px;
	display: block;
	padding: 4px;
	border: 1px dotted #999;
	font-family: Monaco, Consolas, Courier, Monospace;
	font-size: 13px;
}
.subforumicon {
	border: 0;
	vertical-align: middle;
}
.separator {
	margin: 5px;
	padding: 0;
	height: 0px;
	font-size: 1px;
	list-style-type: none;
}
form {
	margin: 0;
	padding: 0;
}
.popup_menu .popup_item_container {
	margin: 1px;
	text-align: left;
}
.popup_menu .popup_item {
	display: block;
	text-decoration: none;
	white-space: nowrap;
}
.popup_menu a.popup_item:hover {
	text-decoration: none;
}
.autocomplete {
	text-align: left;
}
.subject_new {
	font-weight: bold;
}
.highlight {
	background: #FFFFCC;
	padding-top: 3px;
	padding-bottom: 3px;
}
.pm_alert {
	background: #FFF6BF;
	border: 1px solid #FFD324;
	text-align: center;
	padding: 5px 20px;
	margin-bottom: 15px;
	font-size: 11px;
}
.red_alert {
	background: #FBE3E4;
	border: 1px solid #A5161A;
	color: #A5161A;
	text-align: center;
	padding: 5px 20px;
	margin-bottom: 15px;
	font-size: 11px;
}
.high_warning {
	color: #CC0000;
}
.moderate_warning {
	color: #F3611B;
}
.low_warning {
	color: #AE5700;
}
div.error {
	padding: 5px 10px;
	border-top: 2px solid #FFD324;
	border-bottom: 2px solid #FFD324;
	background: #FFF6BF;
	font-size: 12px;
}
div.error p {
	margin: 0;
	color: #000;
	font-weight: normal;
}
div.error p em {
	font-style: normal;
	font-weight: bold;
	padding-left: 24px;
	display: block;
	color: #C00;
	background: url(images/error.gif) no-repeat 0;
}
div.error.ul {
	margin-left: 24px;
}
.online {
	color: #15A018;
}
.offline {
	color: #C7C7C7;
}
.pagination {
	font-size: 11px;
	padding-top: 10px;
	margin-bottom: 10px;
}
.tfoot .pagination, .tcat .pagination {
	padding-top: 0;
}
.pagination .pages {
	font-weight: bold;
}
.pagination .pagination_current, .pagination a {
	background: #eaeaea url(images/nesil/alt_tablo.png) center left repeat-x;
	padding: 3px 8px;
	margin-bottom: 3px;
}
.pagination a {
	border: 1px solid #bbb;
	text-shadow: 1px 1px 0 #fff;
}
.pagination .pagination_current {
	background: #182846 url(images/nesil/tablo.gif) repeat-x left top;
	border: 1px solid #101b31;
	color: #fff;
	text-decoration: none;
	font-weight: bold;
}
.pagination a:hover, .pagination a:active {
	background: #182846 url(images/nesil/tablo.gif) repeat-x left top;
	border: 1px solid #101b31;
	color: #fff;
	text-decoration: none;
	text-shadow: 1px 1px 0 #444;
}
.thread_legend, .thread_legend dd {
	margin: 0;
	padding: 0;
}
.thread_legend dd {
	padding-bottom: 4px;
	margin-right: 15px;
}
.thread_legend img {
	margin-right: 4px;
	vertical-align: bottom;
}
.forum_legend, .forum_legend dt, .forum_legend dd {
	margin: 0;
	padding: 0;
}
.forum_legend dd {
	float: left;
	margin-right: 10px;
}
.forum_legend dt {
	margin-right: 10px;
	float: left;
}
.success_message {
	color: #00b200;
	font-weight: bold;
	font-size: 10px;
	margin-bottom: 10px;
}
.error_message {
	color: #C00;
	font-weight: bold;
	font-size: 10px;
	margin-bottom: 10px;
}
.post_body {
	padding: 5px;
	text-align: justify;
}
.post_content {
	padding: 5px 10px;
}
.quick_jump {
	background: url(images/jump.gif) no-repeat 0;
	width: 13px;
	height: 13px;
	padding-left: 13px;
	vertical-align: middle;
	border: none;
}
.repbox {
    font-size: 16px;
    font-weight: bold;
    padding: 5px 7px;
}
._neutral {
    background-color: #FAFAFA;
    border: 1px solid #CCCCCC;
    color: #999999;
}
._minus {
	 background-color: #FDD2D1;
    border: 1px solid #980201;
    color: #CB0200;
}
._plus {
	background-color: #E8FCDC;
    border: 1px solid #008800;
    color: #008800;
}
.pagination_breadcrumb {
	background-color: #F5F5F5;
    border: 1px solid #FFFFFF;
    font-weight: normal;
    margin-top: 5px;
    outline: 1px solid #CCCCCC;
    padding: 5px;
}
.pagination_breadcrumb_link {
	cursor: pointer;
    vertical-align: middle;
}
.logo {
	height: 125px;
	position: relative;
	border-bottom: 1px solid #194a6c;
}
.logo a {
	background: url(images/nesil/logo.png) top left repeat-x;
	height: 125px;
	width: 950px;
	display: block;
	text-indent: -9999px;
}
.lower_panel a.login {
	background: url(images/nesil/ikon/giris.png) no-repeat;
	padding-left: 20px;
	margin-right: 15px;
	margin-left: 15px;
}
.lower_panel a.register {
	background: url(images/nesil/ikon/kayitol.png) no-repeat;
	padding-left: 20px;
	margin-right: 15px;
}
.lower_panel a.admincp {
	background: url(images/nesil/ikon/adminkp.png) no-repeat;
	padding-left: 20px;
}
.lower_panel a.modcp {
	background: url(images/nesil/ikon/modkp.png) no-repeat;
	padding-left: 20px;
}
.lower_panel a.usercp {
	background: url(images/nesil/ikon/kullanicikp.png) no-repeat;
	padding-left: 20px;
}
.lower_panel {
	background: #eaeaea url(images/nesil/alt_tablo.png) top left repeat-x;
	color: #000;
	border-bottom: 1px solid #bebebe;
	padding: 6px;
	font-family: Tahoma, Verdana, Arial, Sans-Serif;
}
.lower_panel a {
	color: #626262;
	margin-right: 15px;
	text-shadow: 1px 1px 0 #fff;
}
.lower_panel a:hover, .lower_panel a:active {
	color: #333;
	text-decoration: none;
}
.upper_panel {
	background: #eaeaea url(images/nesil/alt_tablo.png) top left repeat-x;
	color: #333;
	border-bottom: 1px solid #bebebe;
	padding: 6px;
	font-family: Tahoma, Verdana, Arial, Sans-Serif;
}
.upper_panel a {
	padding-left: 20px;
	margin-right: 15px;
	text-shadow: 1px 1px 0 #fff;
	font-weight: bold;
}
.upper_panel a.logout {
	background: url(images/nesil/ikon/logout.gif) no-repeat right;
	padding-right: 20px;
	margin-left: 0;
	padding-left: 0;
	margin-right: 0;
}
#golge {
	background: url(images/nesil/golge.png) repeat-y;
	width: 986px;
	position: relative;
	margin: 0 auto;
	height: auto;
}
#golge_alt {
	background: url(images/nesil/golge_alt.png) no-repeat;
	height: 18px;
	width: 986px;
	margin: 0 auto;
}
.alt_forumlar {
	list-style: none;
	margin: 0;
	padding: 0;
}
.alt_forumlar li {
	width: 33%;
	float: left;
	line-height: 20px;
}
#menu {
	background: url(images/nesil/menu_bg_baslar.png) no-repeat;
	position: absolute;
	top: 92px;
	right: 18px;
	padding-left: 41px;
	font-family: Tahoma, 'Trebuchet MS', Arial, sans-serif;
}
#menu ul {
	background: #016db0 url(images/nesil/menu_bg.png) repeat-x;
	list-style: none;
	margin: 0;
	padding: 0;
	height: 34px;
}
#menu li {
	float: left;
	margin-top: 4px;
	margin-right: 10px;
}
#menu li a {
	color: #fff;
	padding: 4px 10px 1px;
	text-decoration: none;
	display: block;
	border-bottom: 0;
}
#menu li a:hover {
	color: #fff;
	border-bottom: 2px solid #fff;
	text-decoration: none;
}
#menu li.active a, #menu li.active a:hover {
	background: url(images/nesil/menu_bg_aktif.png) no-repeat top left;
	color: #333;
	padding: 4px 10px 4px 13px;
	border-bottom: 2px solid #fff;
}
#menu li.active {
	background: url(images/nesil/menu_bg_aktif2.png) no-repeat top right;
	padding-right: 4px;
	position: relative;
	bottom: -2px;
}
.yazar a:link, .yazar a:visited, .yazar a:hover, .yazar a:active {
	color: #333;
	text-decoration: none;
}
form#lang_select {
	margin-top: -4px;
}
.author {
	background: url(images/nesil/nav_bit.gif) no-repeat center left;
	padding-left: 20px;
}
.remember_me input {
	vertical-align: sub;
}
.messageEditor .toolbar_button {
	cursor: pointer;
}
.post_avatar img {
	background: #fff;
	border: 1px solid #ddd;
	padding: 1px;
}
.button {
    background: url(http://www.alonegamerz.co.cc/images/nesil/button.gif) repeat-x scroll left bottom transparent !important;
    border: 1px solid #BABABA;
    color: #000000;
    font-size: 11px;
    font-weight: bold;
    padding: 3px 8px;
}
.button:hover {
    background: url(http://www.alonegamerz.co.cc/images/nesil/button.gif) repeat-x scroll left bottom transparent !important;
    border: 1px solid #BABABA;
    color: #026CB1;
    font-size: 11px;
    font-weight: bold;
    padding: 3px 8px;
    text-decoration: none;
}
.button:active {
    background: url(http://www.alonegamerz.co.cc/images/nesil/button.gif) repeat-x scroll left top #CBCBCB !important;
    color: #000000;
}
div#buscar {
    display: inline-table;
    float: right;
    height: 26px;
    position: absolute;
    right: -5px;
    top: 55px;
}
fieldset.sinborde {
    background: none repeat scroll 0 0 transparent;
    border: 0 none;
    margin: 0;
    padding: 5px 11px;
}
span#buscar_izquierda {
    background: url(http://www.alonegamerz.co.cc/images/nesil/buscar_izquierda.gif) no-repeat scroll 0 0 transparent;
    cursor: text;
    display: block;
    float: left;
    font-size: 2px;
    height: 26px;
    position: relative;
    top: 0;
    width: 3px;
}
input#buscar_caja {
    -moz-border-bottom-colors: none;
    -moz-border-image: none;
    -moz-border-left-colors: none;
    -moz-border-right-colors: none;
    -moz-border-top-colors: none;
    background: url(http://www.alonegamerz.co.cc/images/nesil/buscar.png) no-repeat scroll 5px 50% #FFFFFF;
    border-color: #024570 #024570 #024570 -moz-use-text-color;
    border-style: solid solid solid none;
    border-width: 1px 1px 1px 0;
    float: left;
    font-family: Tahoma,'Trebuchet MS',Arial,sans-serif;
    height: 14px;
    padding: 5px 5px 5px 25px;
    top: 0;
    width: 179px;
}
input#buscar_button {
    background: url(http://www.alonegamerz.co.cc/images/nesil/buscar_button.gif) no-repeat scroll 100% 0 transparent;
    border: 0 none;
    color: #FFFFFF;
    cursor: pointer;
    float: left;
    font-family: Tahoma,'Trebuchet MS',Arial,sans-serif;
    height: 26px;
    padding: 4px 6px;
    top: 0;
    width: 70px;
}
input#buscar_button:hover {
    background-position: 100% 100%;
}
input.textbox {
-moz-border-radius:5px;-webkit-border-radius:5px;border-radius:5px
}