Just wanted to answer a question here that I and my team mates have received many times...
"What's the status on a Server AdminPak version that will work on Windows Vista? Are they going to have one soon?"
Initially, they were working on it. However, the final word on the subject is: No. Unfortunately not.
The recommendation is that you use Remote Administration (Terminal Services) to a server in order to do that work now.
Check out Brian McCann's blog entry on the subject. He, too, laments the decision, but I think he describes the reasoning quite well.
Source:? Technet Blog
Microsoft, Windows Vista, AdminPak