can u help me about my facebook application. for a while now i've been using the old version which is 1.7.0.22 , when i upgraded my facebooks version to 1.8.0.49 i cant access the facebook home screen on my BB , on the application center on the facebook bar instead of the "installed" , "downgrade" is written under the face book bar , how can i get the older version back please help anyone.....