As Alex mentioned
Our JFBConnect Login / Register page doesn't have any custom module positions configured for it. However, most templates will have an above and below content plugin that should work for you.
If you need to customize the JFBConnect registration page further than the options in JFBConnect > Configuration > General > Normal Registration section, then you will need to create a template override for the /components/com_jfbconnect/views/loginregister/tmpl/default.php file where you can add your own custom code or even specify some Joomla code to load modules wherever you want.
The other option is to create a new menu item of type "External Link". Then, put whatever URL you want in there. You mainly need that menu item so that you have an Itemid to use to assign modules to. Then, you'll need to make a modification to our code to force that Itemid onto the Login/Register page. To do so, edit the /components/com_jfbconnect/controllers/login.php file. Around line 110, you'll see:
$app->redirect(JRoute::_('index.php?option=com_jfbconnect&view=loginregister&provider=' . strtolower($provider->name) . '&return=' . base64_encode($return), false));Update that to:
$app->redirect(JRoute::_('index.php?option=com_jfbconnect&view=loginregister&provider=' . strtolower($provider->name) . '&return=' . base64_encode($return) . '&Itemid=<YOUR MENU ITEM ID>', false));The problem with this last bit is that you'll need to make that modification every time you upgrade.
I hope this helps, but let us know if you run into any issues.
-Melissa