OK, that's weird, I would have thought that your airport card at least should be working.

Have you tried running an update with it connected via ethernet? Where there any messages about "restricted drivers"? Try also going to "System", "Administration", "Restricted Drivers Manager" and making sure everything is selected. You will also need to have the ethernet cable connected, as this will require an internet connection.

Also, you will likely only be able to get these working by actually installing the OS, not running off the DVD as a live CD. Not sure how you're doing things right now.