FS40 v 1.2 Motherboard

Anybody know what the difference between the FS40 v1.0 and the FS40 v
1.2 is ? I have been given a SS40 and want to get the best I can out
of it.

I have had a look on the Shuttle web site, and there is a BIOS for the
FS40 and the FS40 v 2.1 - can I use the later one as an upgrade?

Any help appreciated, including any info on the case and any
installation instructions. I have all the downloads from the Shuttle
web site, including the manual for the M/Board, but nothing for the
case and the wiring.

Cheers
Fred