http://www.speedpassion.net/en/download.asp
6th file down. It'll give you the software to update the LCD card (follow the instructions in the 9th file, think you have to hold a button down while you connect it to the USB, with the PC software running)
Then you can use it to connect your PC and try some different firmwares.
Took me about 20 minutes to get the whole thing sorted.