It is not NE2000 compatible; if it were, then the pcnet_cs driver
would have worked.
I don't think we have any information about what chipset the card
uses. You could try to acquire this information from the vendor.
You are pretty much on your own on this. I'm not much interested in
spending a lot of time developing a new driver for an obscure card; I
have enough work to do maintaining the drivers that already exist.
I'd advise you that your best course of action would probably be to
suck it up and buy a card that is listed as working under Linux. But
if you have an interest in driver development and lots of time on your
hands, go ahead and give it a shot.