Have you played online? Not sure if you know, but to get updated rosters in Madden you actually have to go in like you're going to play an online game, it will check your roster files, and if you don't have the latest one it will automatically download/save/load it. You can then back out of it if you don't want to play online, but that's the stupid way they have it setup instead of having it so you can just go in and look and download what you want, which makes a lot more sense for people who don't play online.