I just posted my WiFi findings in the Network forum. Given your type of card, you should be using Knoppix 3.6, not 3.4 with the native drivers. Just in case your problems are similar to mine, try the following steps:

1. Use iwconfig instead of ifconfig. If you run this command without parameters, it should tell you whether your card is recognized or not. If it doesn't show up, then you have a driver problem and I can't help you anymore. I would recommend you to go to http://www.linux-wlan.org/ for information. You may need to get your hands dirty.
2. If it does, use the same utility to set up the wireless parameters, particularly the network SSID and the WEP key if needed.
3. If successful check if pump is running. Use ps -ef | grep pump
4. If it is, go into a root shell and kill it using pump -k.
5. See if cardmgr is running: ps -ef | grep cardmgr. If it is kill it using killall cardmgr
6. Retry the command cardmgr
7. If you don't have any error messages, use ifconfig with no parameters. If your card is successfully running, it should show you the details of your network connection.

I strongly recommend you to read the man and info pages for iwconfig, ifconfig and pump to understand the details.

I hope this helps. Please post the results.

G