Can you tell us what was happening when it wasn't working? Was there an error message or any other details you can provide?
As for Autotune, please make sure the API and Secret Keys are correct. Also, in your Facebook application Settings -> Advanced area, check the following:
Server IP Whitelist - Blank
Update Settings IP Whitelist - Blank
Require App Secret - No
Allow API Access to App Settings - Yes
I hope that helps, but if not, let us know any other details you can.
Thanks,
Alex