Here you go mate.
Mode2/form 1
MEGAUPLOAD - The leading online storage and file delivery service
Once you have downloaded the file, unzip it (using winzip or similar) into a sub-dir on your pc.
Then use imgburn or similar (
The Official ImgBurn Website) to burn a new
(blank) cd with the new downloaded firmware image.
Unzip imgburn, then v31/v32 image and then open imgburn, and select the "write image file to disc" then select the v32_oem_gert.cue (i think, but could be something else, you will need to try the other files, imgburn will work it out) file.
Confirm that it is indeed a mode2/form formatted image and then,
Select the write speed as the
slowest rated speed for the disc,
you must do this and then burn on a good quality cd.
When its finished writing your new firmware cd,
Go to the car open the drivers door,
Go to the nav computer and press eject on drive,
Eject the map disc,
Switch ign to pos 1, leave door open.
Insert firmware disc into drive, follow instruction on nav screen.
Wait (approx 6 mins) till sat nav asks to eject cd and reboot.
Eject cd, and remove from drive
Confirm reboot.
That's it.
Do not switch off ignition or close the door when doing the upgrade.
HTH