This isn't working for me - please help - paid subscriber

The comment plugin is not sold by us. That's by a 3rd party through CMS Market. We've heard reports of issues with it recently, and are not really recommending it. The next release of JFBConnect will include a similar (and better) Comments plugin.

As for login, we recommend our module. You can configure it so the links point to CB registration and forgot password. It also includes the FB Login blue button which is required for letting user's register via Facebook.

For mapping fields from Facebook to Community Builder, that's done completely through the administration area of JFBConnect. Simply use the drop downs next to each field to select which Facebook field will import into it. For more information, check out this page of the guide:
www.sourcecoast.com/extensions/jfbconnec...ration-guide?start=4

You're likely using a 3rd party plugin (Fan box, Like module, etc) that uses the new Facebook API. Unfortunately, JFBConnect 2.x uses the old, and incompatible API. That's why you can't find the code described above. It's not from our component, but from a separate add-on which is causing the conflict. The only resolution for now is to disable those additional plugins/modules until JFBConnect 3.0 is available, which is being worked on right now.