A lot of questions

Hello!
I have some questions and I hope someone have answers
1) Is there any way to change scoreboard logos?
2) Is there any way to change teams names?
3) How to add portrait to created player?

1) In 2k9 you could do that by editing the jersey file, in 2k10 I guess it's in the file which holds logos only
2) It is possible, but I don't know how
3) Also possible, see vlad's REDitor thread

Thanks!