Firmware 8900HD_11.26.2D and Jeppsen compatibility

Hi to everyone...
I have read in many forums that this kind of firmware is compatible with Jeppsen PVR-S2 HD receiver.
Do you know that??
If YES.... what kind of modify I have to do to install the firmware into the Jeppsen??
Thank youu so much

I have an HEX editor to show the file structure. Which number do I have to modify??
Thanks

No problem but if you want we can speak in italian.... Could be better!!!! I'm italian too....
Sorry but I did't understand.... I open the file with ultraedit but I see only Column 11 and not line 11 (on the top of the screen). Well, where do I put the four numbers??
I need some informations... send me a PM please