I found a floppy, and wrote the bios on it.
I still can't provide links, but i uploaded the bios on megaupload, with id : 1H680MX6, if someone want to take a lot at it...
It looks like this bios may be compatible with widescreen resolutions (which the 1008-1 that I tested is not), as i am able now to use 1680x1050 successfully.
No information about that though in the changelog... Weird...
I have used the floppy in order to update the bios, i don't know if asus update would have worked (with the .ROM file), but was not really willing to try...
The thread can be locked, as my issue is now solved.