I'm a new Knoppix user - so far my impressions are very positive. However - I can't seem to get past first base when it comes to basic stuff.

I have two very basic questions - can someone please help me?

I want to connect my machine (P3, 500Mhz, Knoppix version 3.7; kernel 2.4.27, hard disk install) to the internet. I bought (from StarTech.com)and physically installed a cheepo ethernet card (ST100SW with a RTL81390D chip) - which knoppix failed to detect. The floppy disk that came with the card did not include a Linux driver but I was able to find several after googling "RTL81390D". Realtek Semiconductor Corp, the company that made this chip has several Linux drivers available on its web site:
(http://www.realtek.com.tw/downloads/downloads1-3.aspx?series=16&Software=True#16Unix%20(Linux))

The web site has 11 different Linux drivers - 3 of which seem to be appropriate for my version of Knoppix (see list below).

* Linux driver for kernel 2.4.x (RedHat 7.2/ 7.3/ 8.0/ 9.0)
* Slackware 8.0 (kernel 2.2.19 and 2.4.5)
* SCO Unix

Can someone please tell me which driver I should use?

My last question is how the heck do I install a driver for an ethernet card? Do I simply copy it to /lib/modules? Do I have to "recompile the kernel"? (I have no idea how to do that!) Please help! I've spent a lot of time googling to find this information and have not been successfull.