I just checked your home page (that you ran Autotune on), and couldn't see the SCLogin module anywhere.
In general, the most common issues that can occur are:
* The module is not set to show "On all" menu items. That's a setting in the parameters for the module, and if it's set to the Joomla default of "None", it won't show even if published.
* The Facebook App ID and/or Secret key aren't set. JFBConnect won't show the social login buttons for networks that aren't configured. That doesn't sound like the case for you, based on your description, but I want to point it out.
I hope that helps, but if not, feel free to Private Message me more information about your site, where we can see the SCLogin module enabled, and admin credentials (if you'd like) and we'll gladly help investigate further. You can PM me by clicking the mail icon under my picture to the left.
Thanks,
Alex