Interfacing with 2003 R2 Active Directory

I am quite new to scripting as a whole but I understand the basics of PowerShell. I have a 2003 R2 AD domain, and need to extract information regarding Group Policies. Basically the guys that package software and assign to GPO for distribution to the users, cannnot always see some of the GPO's. It looks like a issue with Delegation rights. Therefore I want to audit the GPO's pulling out the delegtion rights and seeing which ones a given group does not have the correct delegation rights to. I read some where that the Microsoft AD cmdlets only work with Windows 2008/R2 and not 2003/R2? If that is correct I was thinking about using WMI to get the data I need.

Any advice,suggestions would be most welcome

Thanks

Jo