Got the engine but newer the source :S i think at the time it was one of the first engines which just worked and still looked better than the rest of the engines.
Many at that time thought that by having the engine code there where no restrictions and they happily made better versions whilst believing they could make Commercial offshots free of charge and keep there modifications closed source and later learned that GPL might mean free as in beer but not that free

xquake was probably a good example as to how far you could dance with id's advocates.
I been sifting pretty much the Whole net and i cant find the source so id say its a lost cause unless someone here got it

Productivity is a state of mind.