Vista Updates on Jabuary 16 2008

I'm running Vista Ultimate 64bit.

When I was first notified today that there are updates available, I saw 2
updates;

- Definition Update for Windows Defender - KB915597 (Definition 1.24.5611.0)
Important.
- Another one with something like "Update for Windows Vista for x64-based"
or something like that. It was Recommended.

They were both check-boxed and ready to Download/install.
I did not want to install these updates right away so i clicked cancel. When
i came back to windows update a minute later, I saw only one update
available, the Important one (windows defender, KB915597). I checked for
updates several times but that second update just vanished.

Maybe because i pressed "cancel" so it canceled out all checked updates
which aren't important, like that 2nd recommended one.

I checked windows update history and didn't find any update which was
canceled, or any update being installed or downloaded or even failed today.

How can i get hold of this update?

* And while were at it, why dont they have an "edit post" option so i could
fix silly typos like "jabuary" instead of january.

* January 17, sorry again