[nuno]

replace that code with

// do ip addresses
	if ($post[ip]!="") {
		if ($logip==2) {
			eval("\$post[iplogged] .= \"".gettemplate("postbit_ip_show")."\";");
		}
		if ($logip==1) {
			eval("\$post[iplogged] .= \"".gettemplate("postbit_ip_hidden")."\";");
		}
		if ($logip==0) {
			$post[iplogged]="";
		}
	} else {
		$post[iplogged]="";
	}

	$post[message]=bbcodeparse($post[pagetext],$forum[forumid],$post[allowsmilie]);

	//highlight words for search engine
	if (isset($highlight) && $highlight != '') {
		if ((isset($postid) and $postid==$post[postid]) or !isset($postid)) {
			reset($replacewords);
			while (list($key,$val)=each($replacewords)) {
			$post['message']=preg_replace("#(^| |\n|\r|\t|\]|>|\")(".$val.")(([\.,]+[ $\n\r\t])|$|\"|<|\[| |\n|\r|\t)#si", "\\1<highlight>\\2</highlight>\\3", $post['message']);
			}
		}
	}
	// do posts from ignored users
	if (($ignore[$post[userid]] and $post[userid] != 0)) {
		eval("\$retval = \"".gettemplate("postbit_ignore")."\";");
	} else {
		eval("\$retval = \"".gettemplate("postbit")."\";");
	}
	return $retval;
}

// ###################### Start gettextareawidth #######################
function gettextareawidth() {
	// attempts to fix idiotic Nutscrape textarea width problems
	global $HTTP_USER_AGENT;

	if (eregi("MSIE",$HTTP_USER_AGENT)) { // browser is IE
		return "{textareacols_IE}";

	} elseif (eregi("Mozilla/5.0",$HTTP_USER_AGENT)) { // browser is NS 6
		return "{textareacols_NS6}";

	} elseif (eregi("Mozilla/4.",$HTTP_USER_AGENT)) { // browser is NS4
		return "{textareacols_NS4}";

	} else { // unknown browser - stick in a sensible value
		return 60;

	}

}