Fedora 8 no longer has the bcm43xx driver. It uses the more modern b43 and b43legacy drivers.
will identify for us exactly which broadcom card you are using.
will identify if either of the b43 modules is being loaded for your card.
This page will identify which firmware you should be downloading to cut with the b43-fwcutter to make fedora identify the card:
You "may" need to do the second part of the 'method 2' howto here to get the card recognised but mine was/is working without it.