No, it's the directory into which you "untarred" the file.

Here's an untested "step-by-step" from their file translated to Fedora 10 specifics:

1. Create a new directory: mkdir hybrid_wl
2. Go to that directory: cd hybrid_wl
3. ark Display/hybrid-portsrc.tar.gz
or ark Display/hybrid-portsrc-x86_64.tar.gz
and extract "all files" to the default location (which should be "hybrid_wl")
4. Go to the source directory cd src
5. Cleanup (optional): sudo make -sC /lib/modules/$(uname -r)/build M=$(pwd) clean
5. Build the LKM, i.e. wl.ko: sudo make -sC /lib/modules/$(uname -r)/build M=$(pwd)

6. Validate you don't have loaded (or built into the kernel) the Linux community provided
driver for Broadcom hardware. This exists in two forms: either "bcm43xx" or a split form
of "b43" plus "b43legacy". If these modules were loaded you would either
a) sudo rmmod bcm43xx or
b) sudo rmmod b43; rmmod b43legacy
7. Insert the Broadcom wl module: sudo modprobe wl.ko

Deleted - Inadvertent duplicated post.

Okay this is for everybody who has a Broadcom with a 4312 chipset. I found this at the Fedora Forums,you can read it here,
If you install broadcom-wl.rpm all the crap is done for you, all you have to do is type: "yum install broadcom-wl"
and that's it! You have to have rpmfusion nonfree repository enabled though. I cant belive I've looked so hard to eventualy find a solution so easy, I wonder what took me so long.

PTrenholme and Hangdog42 thank you for your time to help me solve my problem.
I really appreciate it.

Thanks for posting the solution. The Broadcom driver is not widely known yet so this will definitely help others in this pickle. By the way, you might want to be careful when/if you upgrade your kernel, that might break this driver.