The best resource that I have come across was an article written by Jerry Asher. I have been using his patched version of nsunix for well over a year now with no problems. His site is no longer active but he is a member of the community. I suggested on another thread that he might consider making his instructions available on Jade's articles section on the openacs.org front page. In any event you could try dropping him a line to ask for a copy or see if google still has it cached.