Open Source Mod Chips

There was a company that offered the plans for their mod
chips under the GPL, the name of the company was Hibana and
they offered their mod chips at http://www.aussiechip.com.au
(not a working link).  I'd like to find a copy of this if anybody
finds it while spellunking (it is not archived at archive.org).

Won't work for newer Xboxes

It might be cool to throw up at Sourceforge or Yahoo Groups.