Ultimate Facebook & Buddy Press

I want to create a page where users can be directed to (even better if its a pop-up) where they can register/login or register/login with facebook.
Also, seems like when I install and activate buddypress when ultimate facebook is installed, I am getting an error:
The website encountered an error while retrieving http://www.pinnperf.com/wp-admin/plugins.php?activate=true&plugin_status=all&paged=1&s=. It may be down for maintenance or configured incorrectly.