have you tried it in both pc card slots(if u have more than one)? The card definitely works?
that's realy strange, 'cos you should at least get something like:
0000:03:00.0 Network controller: Broadcom Corporation: Unknown device 4320 (rev03)
as for the driver loader, google for ndiswrapper, it's completely free(not just a trial) and works exceptionally well!!
but you first need to figure out why the card isn't being detected. It could be because PCMCIA support isn't enabled in you kernel, but hopefully it's supported as a module. try
and i think you also need to run
if that doesn't work, then I'm afraid you might need to configure/compile your kernel.