When I first download the iTunes 8.0.1 update, it downloads, but then towards the end of the "installing," an error occurs. Yes, I have already tried turning my computer off and rebooted. It then says to click "tools" then "download only," which I did and it downloaded a folder onto my computer. But now what? What do I click on next? (I tried clicking on each of the icons in the folder - nothing happens)