Index: /Users/pteglia/Sites/mixer/trunk/acquia-drupal-1.2.13/sites/all/modules/userpoints_ubercart/uc_userpoints_award.module
===================================================================
--- uc_userpoints_award.module	(revision 315)
+++ uc_userpoints_award.module	(working copy)
@@ -127,7 +127,7 @@
     if($award_to == 0 || $award_to == 2){
       // Look up our referrer if we have one
       $result = db_query("select referral_uid FROM {referral} WHERE uid = %d", $curUserId);
-      if(db_num_rows($result)>0){
+      if(!empty($result)){
         $ref = db_fetch_object($result);
         $refUserId = $ref->referral_uid;
         if($award_to == 2){