chinese "ipod" player

[fraspax]

Hi everybody!!!
i'm new to this kind of mp3 players, so i need a help, i don't know how to identify this ipod nano like player, i want to:
- update the firmware.
- change the orrible default skin
in the download page, there are a lot of kind of chips..........

specs:
_ SAMSUNG 722 K9LAGO8UOM PCBO
_ ATJ209IN G212FB 132
_ FW: 6207K9X_V.3.4
_ date 2007/04/03
_ Core: 9.0.50
_ date 2006/01/11


here you can find 3 shot of the player (disassembled).
[web:8f578b5bcd]http://mio.discoremoto.alice.it/dreamtheater/[/web:8f578b5bcd]

thanks for the help