diff --git a/ext/forum/main.php b/ext/forum/main.php
index 491f365b..62951e4f 100644
--- a/ext/forum/main.php
+++ b/ext/forum/main.php
@@ -330,7 +330,7 @@ class Forum extends Extension {
         private function save_new_thread($user)
         {
             $title = html_escape($_POST["title"]);
-			$sticky = html_escape($_POST["sticky"]);
+			$sticky = !empty($_POST["sticky"]) ? html_escape($_POST["sticky"]) : "N";
 			
 			if($sticky == ""){
 			$sticky = "N";
@@ -344,11 +344,11 @@ class Forum extends Extension {
                     (?, ?, ?, now(), now())",
                 array($title, $sticky, $user->id));
 				
-            $result = $database->get_row("SELECT LAST_INSERT_ID() AS threadID", array());
+            $threadID = $database->get_last_insert_id("forum_threads_id_seq");
 			
-			log_info("forum", "Thread {$result["threadID"]} created by {$user->name}");
+			log_info("forum", "Thread {$threadID} created by {$user->name}");
 			
-            return $result["threadID"];
+            return $threadID;
         }
 
         private function save_new_post($threadID, $user)
@@ -367,9 +367,9 @@ class Forum extends Extension {
                     (?, ?, now(), ?)"
                 , array($threadID, $userID, $message));
 			
-			$result = $database->get_row("SELECT LAST_INSERT_ID() AS postID", array());
+			$postID = $database->get_last_insert_id("forum_posts_id_seq");
 			
-			log_info("forum", "Post {$result["postID"]} created by {$user->name}");
+			log_info("forum", "Post {$postID} created by {$user->name}");
 			
 			$database->execute("UPDATE forum_threads SET uptodate=now() WHERE id=?", array ($threadID));
         }