Код ставим в ваш css
Код
/* ===== forum Start ===== */
/* Цвет ссылки "Подписаться на тему" */
a.thread_subscribe:link {text-decoration: underline; color:#ffdead;}
a.thread_subscribe:active {text-decoration: underline; color:#79835A;}
a.thread_subscribe:visited {text-decoration: underline; color:#79835A;}
a.thread_subscribe:hover {text-decoration: underline; color:#000000;}
/* Цвет ссылки "подписаться на форум" */
a.subscribe_forum:link {text-decoration: underline; color:#ffdead;}
a.subscribe_forum:active {text-decoration: underline; color:#79835A;}
a.subscribe_forum:visited {text-decoration: underline; color:#79835A;}
a.subscribe_forum:hover {text-decoration: underline; color:#000000;}