Fedora Core 3
ndiswrapper v0.12 - http://ndiswrapper.sourceforge.net
I spent a long time desperatly trying to figure out what was going on with getting this card to work - and as a newbie life is harder still!
It seems though that the new version of the ndiswrapper and the drivers from http://ftp.us.dell.com/network/R76521na.EXE
[ONLY FOR WPC54G!!!! Check the list for your version] and a nice, simple walkthrough have at least partially solved the problem.
I only put this down because so many other people seem totally lost and you can never really have enough help