Hadn't thought about that. If anyone with the 360 version wants to try, that would be great. (You'll need Horizon to extract the actual roster file from the save.)
I know where the data is stored so I can probably figure it out.
Haven't tried it. I know some special characters are possible in 2K8.
I haven't found a universal "forward" position, but doesn't 2K10 let you play anyone at any position? Do players have any known disadvantage if they don't play their natural position?
Don't have 2K9, but 2K11 would probably come first.
That doesn't sound good. If there's a checksum, there's nothing I can do, we'd need a programmer who has experience with that kind of stuff.
I don't know anything about 2K11, but maybe you can get ideas from how 2K10 works. We can discuss that by private message so we don't clutter the forum with technical stuff.