Here is a how to install wl-kmod the link where I found it is at the bottom. He gives a couple of quotes to run in a terminal. ad should be good to go.
1) Enable the rpmfusion repositories.
The broadcom-wl and wl-kmod RPMs that we need are in the rpmfusion non-free repository which also requires the rpmfusion free repository. To enable these repos in Fedora 11 simply do this:
2) Update and install the driver package
Now that you have the appropriate repository enabled, to install the driver package we first ensure that we have the latest updates and then install the "kmod-wl" package which will bring with it the required "broadcom-wl" package:
yum install kmod-wl
3) Make a couple of adjustments
At this stage you should reboot and provided you have Network Manager running (default setting for F11) it should detect your Broadcom wireless device and you should be able to connect to your wireless network.
If you're having problems then it is likely some conflict between Network Manager and the network service. To ensure that Network Manager can use the wireless go to System > Administration > Network and select the wireless device (if it's not there then this doesn't apply to you). Edit the device and check "Controlled by Network Manager" and "Activate device when computer starts". Close Network Configuration, save changes and then reboot.
You should also read the license and readme which are located in /usr/share/doc/