Hi, Alphonsu!

If you read http://www.broadcom.com/docs/linux_sta/README.txt you can find a list of the devices supported by the driver. Since your wireless card is on the list I do not understand why you did not succeed.

I would remaster Knoppix with the latest Linux kernel and repeat the two procedures. Be aware that compiling a new Linux kernel is really time consuming because you have to answer many questions. But if you do not have the time to do so I would suggest that you use the old Knoppix 6.2.1 until the next release of Knoppix.