Just an FYI in case you missed Cecilia’s announcement over on the WSUS Product Team Blog: Vista SP1 for WSUS is coming soon but if you are running WSUS on a Windows 2003 Server there’s an update you’ll need to install first. I pasted a little bit of what she wrote below but for the original blog entry see http://blogs.technet.com/wsus/archive/2008/06/05/windows-vista-sp1-available-to-wsus.aspx.
Quick update on Windows Vista SP1’s availability to WSUS. As I mentioned previously, we are planning on making the full standalone version of the service pack directly available to WSUS shortly (it’s been available for the last couple months in the MU catalog). Before we do so, we would like to give you one last reminder to install the WinVerifyTrust update (KB 938759) if you are running your WSUS server on a Windows 2003 Server or else approving SP1 will result in the binary being continually re-downloaded to the server.
J.C. Hornbeck | Manageability Knowledge Engineer