Also tried using my Facebook OpenID to get an account like you suggested. In the data on the right side of the right side of the registration screen, the email entry is fixed (a, different, older, email I used to register my facebook). However when I attempt to register I get the error message "The email address xxxx@xxxx.xxx is already connected to another account." It is indeed connected to another account, the OpenID account its meant to be letting me register with!