Sorry if this is a stupid question, but when I saw the iTunes 7 release, I automatically went to the software updater in the Apple menu, and thought it would fine the new iTunes. It doesn't, so I've downloaded it from the Apple site. But I'm hesitant to install it, before I know why software update didn't find it. I realise it's a completely new release, being a new number and all, but since iTunes is free, why can't software updater find it??