Unfortunately, I can't. The behavior you describe isn't the normal behavior, so I don't know what conflict between your template and the SCLogin module is occurring. My guess is that if you try another template, like a standard one that comes with Joomla, the positioning will be fine. Without understanding where the conflict is, there's not much I can tell you about how to fix it.
I hope that explains the issue, but if the site is ever put online somewhere, we'll gladly help however we can.
Thanks,
Alex