Cosmo.

It appears that yours is PCI card, but that installer is for NuBus cards.

Does it look like this one

http://tinyurl.com/bsyc2zo

I did a bit of research, and it looks that Farallon is long gone and MacOS drivers are really hard to find. The only place I could find is this one, so go and grab them:

http://www.netrom.com/~john/tgs/macstuff/

If it goes down, PM me, I've already collected them.