[Scott MacVicar]

ok its not showthread.php the function which makes the post is contained, at least i think

open
/admin/function.php

look for the following around line 141
$post[icon]="<img src=\"$post[iconpath]\" alt=\"$post[icontitle]\" border=\"0\">";
}

below it add
$usergroup = $DB_site->query_first("SELECT title FROM usergroup WHERE usergroupid='$post[usergroupid]'");

and in member.php line 1144
$usergroupperms = getpermissions(0, $userinfo['userid'], $userinfo['usergroupid']);

below it add
$usergroup = $DB_site->query_first("SELECT title FROM usergroup WHERE usergroupid='$userinfo[usergroupid]'");

you can use $usegroup[title] now