Hi! I'm not sure on how or if you can shuffle songs on your player. I don't think so, but could be wrong. The one that says 9.1.52 is the firmware version.
Do NOT upgrade your firmware. You will most likely brick your player.
As far as mod and themes go, I haven't tried that with my player, but there is a forum for it on this board that might help you. I know that there are several threads on the subject.
Sorry I'm not of more help. Welcome to the board.
