Detailed steps for upgrading preview 2 code to work with preview 3 are outlined in preview 3 readme file, available for download on codeplex http://www.codeplex.com/aspnet and on microsoft download site http://www.microsoft.com/downloads/details.aspx?FamilyId=92F2A8F0-9243-4697-8F9A-FCF6BC9F66AB&displaylang...