FB App

Been trying to get the PHP Facebook (FB) library working on my local server. Got it working to some extent but I get: Fatal error: Call to undefined method FacebookRestClient::users_isAppAdded() in /var/www/fb/memo/appinclude.php on line 14 which is just wonderful. I have all of the LOTR eBooks so I'm off to go read them on my Eee (which is now running Lenny!)