http://blogs.msdn.com/vstsqualitytools/archive/2009/07/08/test-impact-walk-through.aspxOne of our testers has posted and excellent walkthrough on the test impact features in VSTS 2010.  http://blogs.msdn.com/densto/archive/2009/06/29/test-impact-walk-through.aspx   I encourage you to check it out.en-USCommunityServer 2.1 SP1 (Build: 61025.2)