Membership plugin and facebook plugin

Hi Guys,

I am trying building a paid subscription site where members get access to my videos.

To prevent password sharing I want to force people to create accounts and sing in using Facebook Connect.

I have the Ultimate Facebook plugin activated and have selected the following in the plugin:

"Allow users to register with Facebook"

"Force users to register with Facebook"

and "Require Facebook account"

I am also using the membership plugin and the page that new subscribers are given to register is:

When I hit the sign up button I am presented with a registration form... I just want to show the "log in with facebook" button only...

I would have thought selecting the options in the Ultimate Facebook plugin would have achieved this.

Is there any way to do this?