http://blogs.technet.com/stefan_gossner/archive/2006/05/24/430112.aspxTogether with the beta 2 of MOSS 2007 and WSS 3.0 Microsoft released a couple of nice documents and tools which should help MCMS customers to plan and prepare the migration to the new version on the SharePoint Server Migration Center Articles and Toolsen-USCommunityServer 2.1 SP1 (Build: 61025.2)