OK, I have run into SO many bloody 1330 errors while installing Visual Studio 2008 on a Windows Server 2008 VPC.  Here is the fix I ran across on Heath Stewart's blog

 On my host, I installed the Windows SDK for Windows Server 2008 and .NET Framework 3.5

I then copied SetReg to my VPC image from my host's C:\Program Files\Microsoft SDKs\Windows\v6.1\Bin.

I then updated my SetReg settings on the VPC as is mentioned in Heath's article.

Software Publishing State Key Values (0x22800):
   1) Trust the Test Root........................... FALSE
   2) Use expiration date on certificates........... TRUE
   3) Check the revocation list..................... TRUE
   4) Offline revocation server OK (Individual)..... FALSE
   5) Offline revocation server OK (Commercial)..... TRUE
   6) Java offline revocation server OK (Individual) FALSE
   7) Java offline revocation server OK (Commercial) TRUE
   8) Invalidate version 1 signed objects........... FALSE
   9) Check the revocation list on Time Stamp Signer FALSE
  10) Only trust items found in the Trust DB........ FALSE

 Reran the VS2008 install and PRESTO!  it worked w/ no Error 1330s.

 FWIW, I am writing this down here on my blog so I have it semi-permanently for future such mishaps.  :-)

 Tom