Safari/win2008 upload focus not quite modal

Question

In win2008 x64, Safari doesn't look as pretty as it does in XP/Vista/win7 (see screenshot below). It also doesn't seem to work as well. Try this:

1. Go to http://www.cs.tut.fi/~jkorpela/forms/file.html
2. Scroll down to the "Choose File" button, and click it
3. If you are using win2008, recoil in horror as you notice that the "my stylesheet" link above the upload dialog is still clickable - even if it's covered by the upload dialog!
4. Click the title bar of the upload dialog - only now is the page inaccessible.

Has anyone come across this, and found a way around it? I've reproduced it in win2008, can't reproduce in Vista, but one of our testers have reported it in XP SP3.