Please help a newbie!

I bought AE, downloaded it, and it installed it… and nothing, it doesn’t show when I start my SSF4 game… please help

So you don’t see Oni and E.Ryu in character select?

Actually I don’t see any signs of the upgrade. I even tried to go to the new channels to watch games of new characters, and it told me that the current version doesn’t play these characters.

No idea. Check to see that you’ve downloaded the correct item. Uninstall and reinstall the game and its patches?

I think I will do that. But can you tell me how do you uninstall a game and its patches?

Do you have a non-American version of the game? I had the Japanese version of AE and the American DLC and it wouldn’t work for me. I had to go out and buy an American version of the game.