http://blogs.msdn.com/adioltean/archive/2005/03/28/403084.aspxThe Indigo & Avalon CTP (Community Technology Preview) is available for download here: http://www.microsoft.com/downloads/details.aspx?familyid=85AB132B-F1AA-4422-B053-272D79863013&displaylang=en Maybe this announcement has a chance to be losten-USCommunityServer 2.1 SP1 (Build: 61025.2)