Will updating to iOS 5 delete all my apps, music, etc. ?
I'm trying to update to iOS 5 on my 4g iPod Touch, but whenever I plug it in to my computer and I choose to update it, a little box pops up that says 'Updating to iOS 5 will delete all of the apps and media, including iTunes Store purchases, on your iPod touch. To preserve your content, apply this update on the computer where you sync apps, music, videos, and photos.'
First of all, I'm kinda confused what 'applying this update on the computer' means. Does it mean I have to download the newest version of iTunes? (I've had some bad luck with this in the past- iTunes store not loading after the update, ect.)
Second, I backed up my iPod, so doesn't that mean all my apps, music, photos, etc. should be saved when I update? If not, how can I save them? Because I REALLY don't want do go through having to download EVERYTHING after this update. And having my notes and progress that I've made on games lost would be dang annoying.
Windows Vista