Please review my 1st facebook application. It is a birthday countdown. You can test it here: http://apps.facebook.com/bdaycount/
I couldn't make it work. It keeps saying 27 days left which is incorrect (My birthday is on August) and yeah I am showing my full birthday on my profile. Am I missing a step?
Do not confuse the demo (http://apps.facebook.com/bdaycount/) with the real one. Go to http://www.facebook.com/editapps.php and add it to your profile. Let me know if that worked.