--- sites/all/modules/subscriptions/subscriptions_content.module	2009-07-22 11:51:10.000000000 -0400
+++ sites/all/modules/subscriptions/subscriptions_content.module.new	2009-07-26 16:31:03.000000000 -0400
@@ -230,7 +230,9 @@ function subscriptions_content_nodeapi(&
       break;
 
     case 'delete':
-      db_query("DELETE FROM {subscriptions} WHERE module = 'node' AND field = 'nid' AND value = '%s'", $node->nid);
+      $condition = array('module' => 'node', 'field' => 'nid', 'value' => $node->nid);
+      subscriptions_delete_subscription($condition);
+
       break;
   }
 }
@@ -1097,7 +1099,7 @@ function subscriptions_content_node_type
   }
   $type = $info->type;
   db_query("DELETE FROM {subscriptions_queue} WHERE module = 'node' AND field = 'type' AND value = '%s'", $type);
-  db_query("DELETE FROM {subscriptions} WHERE module = 'node' AND field = 'type' AND value = '%s'", $type);
+  subscriptions_delete_subscription(array('module' => 'node', 'field' => 'type', 'value' => $type));
   foreach (array('blocked', 'unlisted') as $key) {
     $array = variable_get('subscriptions_'. $key .'_content_types', array());
     unset($array[$type]);