Microsoft is working on the first service pack for Windows Vista. 
The service pack is still in the beta stadium, but it seems that some of the DLLs that VistaGlazz patches in the RTM will change. When SP1 is released we will support patching it in VistaGlazz.
In the meanwhile, if you want to patch your system manually, you can download patched DLLs at Anti-Tgtsoft.
Visit the respository at http://anti-tgtsoft.com/repository/
Browse to UxTheme > Windows Vista > SP1 beta.