zirgz , your player would be using the v9.0.xx series firmwares which you can find in here
http://www.mympxplayer.org/actions-9...mare-dc37.html
i'll suggest trying all of them.
As currently the S1fwx firmware extractor only supports upto v9.0.43 only, you might have problems looking for a suitable firmware.
If these in the downloads section do not work, try asking your seller if they have the firmware to send to you, and also search the CD that came with the player, sometimes it is inside and should be in .fw or .bin format.