Welcome to the forums! Fedora 6 is very outdated; support ended in 2007. I would highly recommend installing the current release, Fedora 13. In addition to having the latest software and support from the Fedora team, the current release will probably have better hardware support for your ethernet and wireless.
Once you're up and running, you'll find lots of great how-to's here: https://fedoraproject.org/wiki/Fedora_Project_Wiki
I'm sorry I can't help specifically with your Fedora 6 networking question; I didn't start using Linux until 2007 and Fedora 6 is before my time.