This is a very nice login UI. And looks like you've implemented it very well, is it being applied to a server at all?
I looked at buying the same UI myself when looking around at UI's, but seemed a tad expensive.
EDIT: Also, listen to Breezers advice. It will help tremendously when trying to get these newer graphics 'playing nice' with Mir.
I'll see if I can dig up the files, I got most the RPG & MMO ones he released.