Yet another tool for customizing Windows 7 logon; but this one is detailed and offers a lot of tweaking and customizable options.
I suggest you use it, only if you know what you are doing!
Do read its Read Me file too!
Logon WorkShop by ~dejco on deviantART
If you are lookin for some basic logon changers I suggest you see this: How to change the Windows 7 Logon Screens. | The Windows Club