I also thought it was a Rockship, it's exactly like the one on the picture, however the chip which is behind the LCD screen is an ACU 7515 (69119EA 59S). So I'm lost :s.
Plus I read the Rockship guide but I don't have ConsumerUpdate soft and I'm clueless about my firmware if it isn't an ACU.
Here is a picture of the inside of my player
http://img513.imageshack.us/img513/9819/pict0025ik7.jpg
and here a picture of the chip
http://img156.imageshack.us/img156/5884/pict0023we0.jpg