I have successfully installed a Linksys WMP11 (PCI card) with Debian and Slackware; however, I know nothing about Mandrake and nothing about PCMCIA.
This website provides drivers for wireless cards:
http://www.linux-wlan.com/linux-wlan/
I used it with both installations.
This person also runs a website about Linux and wireless cards:
http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/
I believe he has a HOWTO or something in progress.
[Prism2 thing snipped-- I just realized, that only applies to PCI cards]
That's all the help I can give. Good luck!
