Most UIs do have moveable windows, and many are designed so that you can place the windows whereever you want. With my UI things are slightly different. All of my windows can be moved around, as well as have their transparency level adjusted to your liking. But 3 of the main windows are designed to be placed in their proper corners. You could move them elsewhere, but it may not look quite right.
Refer to
THIS THREAD for more information about the current release my UI skin.
-Cormanth