[Logician]

Here is the core of your hack. Not admin cp integrated but I hope still be useful for you:

edit global.php, find:

PHP Code:

if ($bbuserinfo['userid']==0 and $usereferrer and !$bbreferrerid and $referrerid) { 


Replace it as:

PHP Code:

$unallowed_refer_users=array('X','Y', 'Z');
if ($bbuserinfo['userid']==0 and $usereferrer and !$bbreferrerid and $referrerid AND (!in_array($referrerid,$unallowed_refer_users)) { 


You can add userids replacing X,Y,Z etc.. The ids put into this array will be ignored in the referal system..

Enjoy..