customize registration email and registration fields

JFBConnect doesn't have a custom email for new users, we simply send the standard new user one from Joomla. The registration email that's sent is defined in the Joomla User language file at /language/en_GB/en_GB.com_users.ini

As for customization of the registration fields, there's no way to separate the Full Name into 2 separate fields. Joomla stores them as one 'full' name, and we can't break that behavior. For additional custom fields, you'd likely want to use a 3rd party component that we integrate with that has additional profile fields, like Community Builder, JomSocial, Kunena, Agora, or K2. It is possible to create a custom profile plugin to store user information in a file or your database however you want, but you'd need a PHP developer to help you do that (we have documentation on how).

Hope that helps,
Alex

If you're simply looking to use the K2 integration, provided with JFBConnect, see the Profiles configuration page to show how to configure importing of a user's Facebook information into their K2 profile:
www.sourcecoast.com/jfbconnect/docs/configuration-guide?start=8

If you're looking to develop your own plugin (PHP hand-on), see our developer documentation:
www.sourcecoast.com/jfbconnect/docs/deve...ing-a-profile-plugin

Hope that helps,
Alex