Warra's post will probably freak you out more, although his post is extremely helpful. All you need are two files from the windows world. Ndiswrapper is a program that lets linux use the windows driver for your wireless card. So you need to find the windows driver, called bcmwl5.inf. Also, you will need the bcmlw5.sys file as well. Copy these files onto your linux system somehow, using a flash drive or something similar. If I were you I would copy these files into the directory:
where "YOURUSER" is your username that you created on install.
Then open the program "Konsole".
This is called the command line interface or CLI.
ndiswrapper -i /home/YOURUSER/wirelessdrivers/bcmwl5.inf
Some other commands that will let you know what the hell is going on with your modules is
"ls" meaning list "mod" meaning modules. See easy.
It will list all the currently loaded modules on your system that your system is using right now.
Don't see "ndiswrapper" listed? Type
MAGIC! It appeared!
rmmod means remove module (guess what that does
your wireless still not working?
ndiswrapper -l (meaning hey ndiswrapper list what devices/drivers you are currently using)
if it says something like "alternate driver" you are not using the ndiswrapped driver, but the kernel driver.
you will then need to rmmod all the modules like mac80211 (which are the kernel modules that are interferring with ndiswrapper)
if you get the output like "can't remove module in use by "some other module name"
just rmmod "some other module name" (without the quotes obviously)
Now once you have gotten rid of all the kernel wireless drivers (I think the last one is mac80211_crypt) then you will want to
this will show if your wireless card is working. Try associating with a WAP if it is. (right click on knetworkmanager and click on your ESSID on the list. Presto!