knoppix is a Linux intended to run only from CD, so there is no other version.
as to configuring your wireless. we need some more info. what card. manufacturer, what it is seen as under linux...
if you type this in a console,xterm, aterm Konsole... (comandprompt, dosprompt... in Win)

sudo true ; ( set -x
lspci
lsmod
ifconfig
iwconfig
) >& result.txt

the result is that you get a textfile called result.txt in your virtuall /home/knoppix directory.
if you have internet but no Wireless you can now copy/paste the result here, if no internet on that computer...
somewhat more complicated, ofcource you can move that file to a floppy, usbpen...
to do that you just plug it in and click the icon on the desktop, from there you get a filemanager, that you can safely close.
now you rightclick on the icon (same as before) and chose actions and change read/write mode, next you move the file to the floppy, USBpen (you get a new filemanager by just clicking on the icon again)... and reboot to win or move the media to other machine WITH access, after that you can paste the results here and we will get more to work on.