I have tried a Compaq WL200 PCI wlan nic, but without success.. I have not have any time to look further into it, but it seems that the card uses a Cirrus Logic PCI-2-PCMCIA chipset. (it is supposed to be a "pure" pci card). The card is based on the Prism chip which should be supported. I recall that the class of the card was not 0200 which the other nics are.
Please let me know which card you are trying to use!