As has become quite the normal pattern, Microsoft has released service packs for a couple of their latest babies....
First, here is a link to the download site for the new Office XP SP1 page:
Next, here is a link to the download site for the new .NET framework SP1 release:
Both of the above updates have a few significant changes, so you should check out the fix lists and see if you need an upgrade. The funny thing is that most of us still have not made it out of the lab with the originial releases of this stuff yet.
Let me know how it's going out there with all this new technology.