According to http://linux-wless.passys.nl , your card has a Broadcom chipset. Broadcom does not support Linux at all. They give out no documentation of their chips & products and this results in no Linux drivers for broadcom wireless devices. This means that we must use a driver wrapper called ndiswrapper. It is a translator driver that makes a network card driver for MS Windows work on Linux.

Normally the progression of how drivers work looks like:
Linux kernel -> Linux network driver -> network card

With Ndiswrapper, it looks like:
Linux kenerl -> ndiswrapper -> Windows network driver -> network card

So now you see that it requires not 1 but 2 pieces, the ndiswrapper & the windows driver. Knoppix 3.8.x and will include ndiswrapper so this piece is already done for you. There is no need to download & compile/install it. You can follow the generic ndsiwrapper installation instructions at http://ndiswrapper.sourceforge.net/m...Windows_driver and you can find Network card info listed alphabetically by manufacturer at http://ndiswrapper.sourceforge.net/m...dex.php/List#L