Using HTC sense with Facebook

[Joe1988]

ok so I'v had my Evo for a few months now but since i got the phone i have not been able to log in to facebook using HTC sense so that when i do things like upload a pic it says "HTC Sense" at the bottom. it says "Warning this service is not yet available". i had an Evo shift before trading it in for my Evo and it was able to log in using facebook with sense and iv seen other ppl using it too but no matter how many times i try it doesn't work. help would be much appreciated on this. thnx in advance.