So, Apple engineers are really starting to crank up Boot Camp and we've been blessed with two revisions in less than a month.
To take full advantage of the new Windows drivers, you normally have to fire up Boot Camp Assistant to burn the Driver CD.
Most likely, that CD will not be used again and will quickly join its AOL Disc Mailers brothers in CD Heaven (aka your local landfill, unless you're into
CD coasters, that is).

Steve Jobs made a big deal about how the new iPods use 52% less packaging with the launch of the 5G iPods. And appropriately so. They sold 60+ million of em iPods so far so that's a big environmental impact.
Anywhoo, here's the little tip to avoid burning the Driver CD.
Just go to
/Applications/Utilities and right-click on
Boot Camp Assistant. Select
Show Package Contents and then open the
Contents/Resources folder.
There's a file named
Diskimage.dmg. Yep. That's the Driver CD image right there.
Just double-click on it and you should be able to get the file named "
Install Macintosh Drivers for Windows XP.exe"
Now, how do you invoke it from your Boot Camp installation without burning a CD?
If you have a FAT32 filesystem for BootCamp, no problemo. Just drag it over and boot into XP. Run the file as you would any driver installation program in XP.
If you're using NTFS in BootCamp, just drag the 180mb file to your iPod (or any jump drive for that matter) and just run it from there.
Simple! Not only do you avoid burning a one-time use CD, its actually faster to do it this way!