[Mutt]

was just thinking about it and you probably should throw something in there in case it's a guest posting.

$pointsperreply=1; // repuation points per reply.  0 to disable
$pointsperthread=1; // repuation points per thread.  0 to disable
if ($foruminfo[forumid]!=18 && $foruminfo[forumid]!=6 && $vbulletin->userinfo['usergroupid']>1) {
	if ($type == 'thread') {
		$reppoints=$pointsperthread;
	} else {
		$reppoints=$pointsperreply;
	}
	if ($reppoints) {
    	$vbulletin->db->query_write("UPDATE user SET reputation=reputation+".$reppoints." WHERE userid=".$vbulletin->userinfo['userid']);
	}
}

this should do it.