Ken,
When you run Autotune, in the Facebook App section, please make sure you hit "Refresh" to fetch the latest recommendations as well as your current Facebook settings. Then, make sure all the settings are correct.
If that doesn't work, please go to the
Facebook Developer Area
. Then, go into your Application's "Status & Review" section. At the top, make sure the "Do you want to make this app and all its live features available to the general public?" is set to "Yes".
I hope that helps, but if you still have issues, just let me know.
Thanks,
Alex