The brand is Suntech ST909, it has 5 buttons on the left side for navigation and 3 buttons on the right for power on off and for volume + and -. USB plug is also on the right.
The firmware version says: ACTS16D_13 2005/06/01 and WS-3.2.13 2005/11/10
In case you're intersested here's the link to the manu site:
http://www.mp3-suntech.com/english/p...i=MP3%20Player