Network Admin with minimal experience needs help.

Can someone recommend which Microsoft Course would best suit this person?

They're using Windows Server 2000, and haven't looked into upgrading (yet). They have 4 servers in all. He has kinda grown into the position of the administrator and hasn't had any formal training. He knows the basics, ie assigning new users, passwords. He has been asked to start taking classes.

Anyone know which MOC class would be best for someone with this kind of minimal, self taught experience.

Thanks in advance.