Note that if you are trying to configure Profiles in ASP.NET 2.0, there no longer is a ‘Profile’ tab in the ASP.NET Web Site Administration Tool.  This tab appears in the Beta 1 and found it’s way into a lot of documentation and web casts, but was apparently removed in Beta 2 and the final release.  As a result, if you want to configure custom Profile Properties or use a custom Profile Provider, you must do so manually in the web.config file.