Linux and my “Instant Wireless” PCMCIA adapter

Every time I think "Linux has probably improved enough that I'm going to try to use it as one of my main desktops", I run into something dumb that makes me switch back... Today it's Broadcom's lack of support for their 54G wireless chipset that's in my Linksys "Instant Wireless" PCMCIA adapter. I downloaded and burned RedHat 9, got it all installed, and then ran into this. I just bought this card a short while ago after I broke my previous one, but long enough ago that I can't exchange it. Doh.