Daniel,
Just a heads up - a new edition of the PPAP manual is (was) scheduled to come out - although I'm not sure when now. It was originally slated for 1 Sept 99, but that's done come and gone. I wouldn't hold up starting to document your system, and I don't think the new manual will bring any new or drastic changes, but I thought you might like know. If you need more info, try calling the AIAG.