Login & Registration issues with Facebook and my Buddypress

Hello,

Looks like I properly configured and installed the plugin and facebook application, however I have these issues and it's maybe related to our premium theme Salutation compatibilities issues with the plugin.
When I click on login with FB, I don't get any login errors but It keeps me logged out.
Also, when I click on register it brings me to WP/sign up.php page while my registration page is on mysite.com/register.
I use the latest version of wordpress and I have a buddypress installation on a MU.