Something definitely sounds wrong if none of the features are working.
Here's some steps I'd recommend based on your description of the problems:
* I would test with a standard template included with Joomla, just to see if that fixes a lot of your problems. That will help narrow down where issues may be and help decide where to go from there. In the SCLogin module are parameters for "Include JQuery" and "Include Bootstrap". If none of the styles look right on your site, I'd enable those two settings.
* Go to the
Facebook Apps
area and make sure "Sandbox Mode" is "Disabled". That is likely why your wife's account fails. Autotune can set all the other settings in your App except for Sandbox mode.
* Let us know the URL where we can see the problems at.
Feel free to Private Message me credentials. You can PM me by clicking the mail icon under my picture to the left. We'll gladly look at the admin area to see if there are problems, but we can't completely configure it for you as there's a lot of options and how you want things to work is up to you.
Thanks,
Alex