Check out this really cool post from the AzMan Team blog! http://blogs.msdn.com/azman/archive/2006/05/06/591230.aspx
The ADAM and AzMan teams got together to show how to use ADAM principals with AzMan. Sudheer, Authorization Manager Team, provides a description and csharp / C# code from that effort. Note: you need to be using Windows 2003 SP 1, the updated Win2k3 Admin Pack for XP or the updated Win2k backport.