Slow starter: Login with and they're logged in

In the JFBConnect -> Configuration area set the "Enable Automatic Registration" setting to "Yes". That will bypass the registration forms for Facebook, Google+ and LinkedIn. Twitter does not have a method to retrieve the user's email address, so Twitter authentication will have to go through a registration form flow.. though you can minimize that down to just asking the user's email address through the JFBConnect options.

As for importing profile information, you just need to enable any Social Profile plugins that were installed on your site with JFBConnect and configure the profile import in the JFBConnect -> Profiles area.

I hope that helps, but if you have any questions, just let us know.

Thanks,
Alex