User Feedback :: Wireless
When I was looking for a pcmcia card for my laptop, I first looked at what was supported in DSL.
$ ls -la /lib/modules/2.4.20-xfs/kernel/drivers/net/wireless
What was there is: airo, hermes, and orinoco
Since I refuse to install to hard drive, I got a card that I KNEW was going to be supported! 
For linksys you might check out:
http://www.network-drivers.com/drivers/49/49228.htm
or google search for linux-wlan-ng and try installing that.
I'm running wireless under DSL using a AmbiCom 2.4 GHz / 11mpbs card, model WL1100B-PC/PCI, this is a generic from Taiwan which I think emulates an Orinoco card. 
original here.