canon mx850 setup on wireless network for OSX snow leopard

for the umpteenth time i'm having to get the printer working. IJ Network Tool finds the printer:  canon downloads network setup guide: MX850_NSG_EN_V1.pdf file install locations: /Library/Printers/Canon/BJPrinter/Utilities/Canon IJ Network Tool /Library/Printers/Canon/BJPrinter/Utilities/Canon IJ Printer Utility canon drivers for snow leopard