I do not know anything about lincvg.
This is from my experience. I assume you want the madwifi driver.
You can download the snapshot here http://madwifi.otaku42.de/
The file name is madwifi-cvs-current.tar.gz (Or .bz2).
Un-tar it: tar -xvf [full-path-of-package] for .TAR.GZ
tar -xjf [full-path-of-package] for .TAR.BZ2
Make sure you have modprobe and depmod linked to /usr/bin, else the install will fail.
you can test test by entering "modprobe" or "depmod" into the command-line. If you get an error, then they are not linked. To link, you need to be ROOT.
To link do: ln -s /sbin/modprobe /usr/bin/modprobe for modprobe
and ln -s /sbin/depmod /usr/bin/depmod for depmod
Also, you want to make sure that there is a link to the kernel sources in /lib/modules/"uname -r"/build. Installing the development package from add/remove applications will install the sources and link them.
Before building the driver, you need to have the package called "sharutils" installed. Since you have YUM, you can just do a "yum install sharutils".
After linking, move into the directory where you extracted the drivers.
Then, log in as root and do a "make" then "make install"
To test the driver, do a "/sbin/iwconfig". If you see an "ath0", then the drivers work.
Set the network ID "/sbin/iwconfig ath0 [ssid]"
Set the signal mode "/sbin/iwconfig ath0 mode [signal mode]"
I do not know how to do WEP encryption, I do not need it.
I connect to my router with "dhclient ath0"
For me, the drivers are loaded at boot time, but if they're not, you can load them manually. Log in as ROOT, and do a "modprobe ath_pci" and "modprobe ath_hal".
Then follow steps for configuring and connecting above.
Hope this helps