I'm not sure if this will work... open includes/functions_databuild.php, find this:
Code:
// get newest member
$newuser = $vbulletin->db->query_first("SELECT userid, username FROM " . TABLE_PREFIX . "user WHERE userid = $members[maxid]");
and replace with this:
Code:
// get newest member
$newuser = $vbulletin->db->query_first("SELECT userid, username FROM " . TABLE_PREFIX . "user WHERE usergroupid = 2 ORDER BY userid DESC LIMIT 0,1");