Tell us about yourself!
VistaGlazz is now confirmed malware. It is better to use UXStyle or UXTheme. UXTheme is also confirmed to work with Vista. Just make sure you have SP2 installed on Vista. Also VistaGlazz actually would delete UXTheme.dll from the computer making it almost impossible to undo. (Unless you have a Restore. But you would have to press F8)