custom fields

There's a few different ways to do this. We'd need to know more about your configuration and how user's are registering to get you the best response though. Please let me know:
* What version of JFBConnect you're using
* Do you have any 3rd party profile extensions, like JomSocial, EasySocial, Community Builder, etc installed
* What version of Joomla you're using.

Also, please post from the account you subscribed to JFBConnect from. Priority support is for active subscribers only.

Thanks,
Alex