Oh I get it!

Make a note of all the TCP/IP settings that windows uses to work with DSL, IP, subnet mask and all that sort of stuff, then when you are booted back into knoppix, use netcardconfig and fill those values in as it prompts you. If it doesn't prompt you, then the knoppix autodetect hasn't recognised your DSL connection, I have no experience of DSL.

The internet box I have is connected to USB and knoppix just basically worked, I think this is because of a module called CDCEther

Stu.....