Exactly what model of Linksys card is this?
What version of Linux are you trying to use?
A Linux install from floppy of anything other than the most BASIC system is going to be a real pain in the butt. It might not even be supported on some distributions anymore. I think Debian and Slackware used to have a setup for floppy install, but that was quite a few versions back.
A better option for you would be to borrow another NIC card that you can get working.. do the NFS/FTP install and then get the other one working. Maybe you could even do this by borrowing a backpack CDROM or zip drive or something. As a matter of fact....
http://www.linuxdoc.org/HOWTO/mini/I...-From-ZIP.html