I kept a backup of the original files, so restoring was not a problem, but thanks for the tip
With Windowblinds, and its other programs (Icon Packager, and CursorFX Plus, etc.) you can modify the looks of your system without changing ANY part of Windows. To use Visual Styles one has to run a patch to allow unsigned themes to be use, not so with Windowblinds and its many skins.
With WPA I had so much trouble with it that I eventually started using cracks to bypass activation altogether under both XP and Vista even though they were both legal copies. So far I haven had that problem with Windows 7. WPA also had many problems telling the difference btween a hardware update or a software one.