I found my problem getting the firmware updated... I had to follow this procedure.
Copy all update files to my SD card.
In XP, tell the file explorer to eject the card to make sure it finished writing out the buffers to the card.
Insert the card into the GP2x while still powered on.
Turn off the GP2x.
Turn the GP2x back on.
This was the only way I could get the GP to recognize there was a card installed.
The step above about ejecting the card through file explorer I found is pretty important. If I didn't do that step, not all of the files were written to the card.
Igboo