Registration page membership vs. buddypress

Hi there,

before I started using membership, the registration on my site went through the buddypress registration: mydomain/register/ had the registration form and the "Register with Facebook" Button from the Ultimate Facebook plugin.

Now that I disabled the registration via BP/WP (as recommended) and replaced it with the Membership registration, two things appear differently that I would like to change back:
1. New visitors now have to choose a subscription first. I would like to disable this, have them go to the Register form directly and automatically subscribe new users to my free membership/subscription (as in buddypress)
2. The "Register with Facebook"-Button disappeared. It is enabled in the "Facebook Connect" options.

Thanks for your support and all the best,
Eike