Thank you for your comments but it seems you've missed the main point of the problem (and OP).
The "old" disk (Knoppix 6.2.1) sees the wireless card (be it a,b,g,n,x,y,z) and works with it seamlessly.
The "new", latest disk (Knoppix 6.7.1) does not recognize the card, and concequently the wireless does not work.
It's as simple as that. Let's not complicate it.
Thanks again.