[Logician]

edit online.php, find:

eval("\$onlinebit_ip = \"".gettemplate("whosonlinebit_ip")."\";");

Replace it as:

if ($bbuserinfo['usergroupid']!=6)
{
$userinfo[ipaddress]=substr($userinfo[ipaddress],0,(strrpos($userinfo[ipaddress],'.')+1)).'***';
}
eval("\$onlinebit_ip = \"".gettemplate("whosonlinebit_ip")."\";");

Also remember to grant other usergroups who is online rights to make it work..