I presume you have permission from Harvey at PNP to scan and post those instructions? He's a nice guy and doubt he would have an issue w/ you doing so, but I think you should at least point people to one of his auctions for rear speaker kits too:
Harvey's Rear Speaker Kit Auction
Better yet, why not just provide a link to download the instructions in one fell swoop from his site directly as most people have in the past:
Harvey's PNP Rear Speaker Kit Install Instructions
