Hi Matt,
Did you allready try to put both firmware files (WINCEIMG.BIN and WINCEIMG.CKS) on the root of the SD card and flash the system with these files?
To get into the flash menu press the following buttons in the same time: menu button, map button and eject button. also press the reset button with a stylus pen. In the black screen retire the stylus of reset and in the blue screen take your fingers of the 3 buttons. In the blue screen use the following code with the joystick: up, up , down, press menu button, left, right and press the center of the joystick to valid. After this you wil