You didn't say which card you got, it would help if you were to tell us
which card and which chipset is on it. Do an lspci to get the details.
If the card has Linux support chances are it's in a much more recent
kernel then what's in MDK 10.0 so you'll have to upgrade the kernel to the
current one. If there is no native Linux support your other option is to
use Ndiswrapper and use the XP driver. Mandrake includes Ndiswrapper in
the club version, but 10.0 is so old I don't know how well it's version of
Ndiswrapper will work. Get the current version here,