Glad to help. There's a ton of features in our products. We always try to make things easy to find and understand, but it's easy to skip over an option.
For the positioning, the absolute div you're putting it in is causing all your trouble. You should:
1) Move the SCLogin module into the div with id="toolbar" (the same as the search module)
2) Add the following to your CSS:
That should put it inline with the search bar, but all the way to the left.. and aligned with the image.
I'm hoping/assuming your template has a module position in that toolbar area you can easily assign too.
I hope that helps,
Alex