I just heard that you can download the VS 2005 Class Designer PowerToys at this link:
http://www.codeplex.com/modeling
With the deminse of the GotDotNet web site, it's been difficult to find a place where it can be downloaded!
Kevin McNeish
Microsoft .NET MVP
President, Oak Leaf Enterprises, Inc.
Chief Architect, MM .NET Application Framework: http://www.oakleafsd.com