Webcast - ASP.NET Podcast Show #65 - Atlas Integration with ASP.NET Services - Login/Authentication, Roles, and Profiles
Goto: http://aspnetpodcast.com/CS11/blogs/asp.net_podcast/archive/2006/08/11/493.aspx
You can view the webcast directly there or download and watch it at your convenience. Source code for this is available for download at the link. Enjoy!