[Opserty]

Under:

PHP Code:

     $threadman =& datamanager_init('Thread', $vbulletin, ERRTYPE_ARRAY, 'threadpost'); 


Add:

PHP Code:

$threadman->validfields['great'] = array(TYPE_UNIT, REQ_NO); 


I think its something like that, go into the thread datamanager and see how it manages existing validfields, if what I suggested doesn't work. (class_dm_thread.php - I think it is).