SCLogin Modal popup error

Thanks for getting that up. Making progress. Your template is only including a subset of the Bootstrap CSS styles. Your Bootstrap CSS file is:
yozies.dyndns.tv/coasite/templates/rt_he...mpiled/bootstrap.css

The one with SCLogin is:
yozies.dyndns.tv/coasite/templates/rt_he...mpiled/bootstrap.css

In 'our' CSS file, there are styles for things like .modal-backdrop and lots of other modal-xyz type styles. We prefix those with #login-modal so as not to conflict with other templates, but the 'base' styles are missing altogether from yours. You'll either need to include ours (by enabling the Bootstrap option) or enable/re-compile them into your template's CSS.

Best of luck,
Alex