PCI Wireless in g3 B/W

Hey all, I've got a Trendnet tew-614+ 802.11b wireless card that is in my Compaq peecee at the moment. I'm making the swith over to Mac for all my computing, leaving my pc for tv and dvd watching. My question is whether or not there is some sort of generic 802.11b PCI driver that I could use to run the wireless card in my G3 B/W? I know that one company (Orange, I think) makes one that they charge $15 for, which I'd probably get, but I was wondering if there's an open source or generic one you all know about first. Thanks a ton!