As I have had a number of problems installing the PDC "The Goods" set on a Windows Vista PDC build on my second machine here are a number of links that might help you not falling into the same problems...

http://msdn.microsoft.com/windowsvista/default.aspx?pull=/library/en-us/dnlong/html/WinFXSeptPDCReadme.asp
http://channel9.msdn.com/wiki/default.aspx/Channel9.PDCTheGoods
http://blogs.msdn.com/tims/archive/2005/09/19/471630.aspx

Hope this helps ... I'll see it this week...