[Admin]

In online.php replace:

        if ($user['usergroupid'] == 6 and $highlightadmin) {
          $userinfo["$key"]['username'] = "<b><i>$user[username]</i></b>";
        } else if (($mod["$key"] or $user['usergroupid'] == 5)and $highlightadmin) {

With:

        if (($mod["$key"] or $user['usergroupid'] == 5)and $highlightadmin) {