I just got Uncharted 2 GOY edition and it came with a bunch of avatars and other dlc. I downloaded the avatars (I think) and I went to the place to change it, but there were no avatars shown, not even defaults, to change it. I can't think of what the problem could be.
I'm also having trouble downloading things. I tried downloading the maps that came with Uncharted, but I'm not sure if I did it right. I go to the Playstation Store and to the download section, and downloaded them, but I'm not sure where they would show up after downloading them.
If you chose "download in background" for the Uncharted maps, then they should appear in the Game section of the XMB when they have finished downloading. You need to choose the map pack under Game to start installing. Downloads in progress appear under the Network section of the XMB.
If you didn't choose "download in background", then the map pack will automatically install after it finishes downloading.