Not a map, though this might help with what you want.
http://www.fichters.net/oneworld.htm
Otherwise, try to get printed copies of the schedules from the airlines. They generally will give codeshares, seatmaps, and routemaps. I get mine from LAX, though I am sure that they would mail them to you.
If I ever get around to it, I will try to scan them and send them to fewmiles if he wants to include them. I think I have 5 of the 8 airlines.