Hi,
There are some problems in facebook_connect modules.
After joined with fb account:
1 - Mandatory fields not completed
2 - Email not correctly filled in
If is impossible to retrive the email and auto fill in the mandatory fields (they can be personalized by admin, than I think is impossible to auto-fill), show to user a message to do it or auto redirect to the account page, and make site unusable if mandatory field are empty.
