Ok, I installed an RPM (DriverLoader from Linuxant.com) and, As far as I know, all it did was put a bunch of stuff in /usr/lib/driverloader/
The point of it was to get my Linksys WMP54G Wireless network card to work, but it still doesn't. What am I supposed to do now?
Thanks in advance

And, yes, I am a noob...

The question is, how do you know it's not working?
I spent a lot of time trying to reinstall and recompile my modem drivers,
but then I found out that drivers were fine and I didn't link my modem device
to /dev/modem.

Link?
How exactly do I do that?

first of all you need to find out what device your network card is, to find this you need to
read "readme" files which come with your drivers.
then (in Red Hat) you have to go to sytem tools/network device control...
I never installed wireless card, so I can't help you any further.
Try reading readme's

I'm running Mandrake 9.2 KDE

Unfortunately, there were no readme's for the driver that I could find. The only doc was a license.

Also. There is no System Tools/ Nework device controller in Mandrake (I think)

Please help

K Mandrake sholud have a thing named "Configuration Center" try to search there.
If it is not there try some other config menus...
There couple of ways to find out what's name of the device.
1. Try to search on google for "Linksys WMP54G driver linux tips help" or something like this.
2.Run instalation again and try to see if it outputs information.
3.search for newest device in /dev/ folder
1)login as root
2)run console(konsole)
3)change your current directory to /dev/ by typing in commnd "cd /dev/" and then press enter
4)Use "ls -l" to see all devices(files) in the folder then filter it with "grep" it should look like
ls -l|grep -i "what_you_are searching_for"
to search for all device files created on November 17 type in
ls -l|grep -i "Nov 17"