Useful custom kernel (including working wireless drivers) available from “adamm”‘s repository here: http://www.array.org/ubuntu/
At the time of writing not everything’s fully worked out (issues with the headphone socket etc.) but it’s a good way to get the stock Hardy 8.04 install functional and on the net.
For the most basic install (to get wireless working at least) you can just copy a couple of debs onto a usb stick and “dpkg -i *” install them before getting the rest of the updates via the net repository.
Up to date discussion of progress currently available in this thread.