SOLVED. - formulating a if sentence

[Vaupell]

NO ERRORS ANYMORE READ LAST AREA :P

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hmm getting a parse error in this snippit

 $vbulletin->input->clean_gpc('r', 'invitation', TYPE_NOHTML);
 
    if ($vbulletin->GPC['invitation']){$invitegroupid = $db->query_first_slave("SELECT NewusergroupID FROM " . TABLE_PREFIX . "vbinvitationcode WHERE invitation = " .  $db->escape_string($vbulletin->GPC['InvitationCODE'])}
    { 
            $userdata->set('usergroupid', $invitedgroupid);  
        }
    else
    {
           $userdata->set('usergroupid', $newusergroupid);
    }

Things i suspect, is that
{} dont fit in the if (){} ?

and not really sure that else can be used here, maybe ?