AD, OU policies in MacOSX 10.3 Server PDC

Hi all, Is there any way to apply OU policies configured in a Win2k server on a MacOS X Server? I explain me. In a W2K Server you can configura policies to apply on a machine and a user at login on, like: -Redirect "My Documents" to any place you like. -Get access to a certain apps only. -Configure IE, like proxies, home, search page,.... I can access to this policies on the W2K server, but I don't know how apply on Mac OS X Server. Any Idea would be very appreciated. Thanks.