Can you do this? I mean like organazing by full games, demos, avatars, and themes? If not, why have they not done this?
Good question, very good actually, however it's been requested many many times before on these Forums, go to the PS Blogshare Website to vote for it, maybe one day it'll happen.
I really don't see why this would need that.. Is there some kind of technical issue? This is mostly for people who have had their hard drive replaced or have bought a new ps3.
On top of organizing, you should be able to have check boxes for bulk downloading so I don't have to download each file I want.