The TwinMos card has a Realtek8180 chipset. For drivers see:
http://www.realtek.com.tw/downloads/...x?Keyword=8180
There is plenty of discussion about it - and while it seemingly does work for some under Linux, it seems to be not very simple to set it up.
Since I have a TwinMos card, I am currently trying to set it up under Mandrake 10.0 on my IBM Thinkpad...
Miklos