i have an iMac 20, intel, os 10.4, p3 build 5638. installed an hp multifunction laser printer (mac n win compatible) that is connected to an airport extreme. it prints nicely from mac n from win in parallels. in win environment, it has bonjour so win can print easily without having to check a specific printer at the bottom button. bought an airport express. called mac tech support and they helped to join the 2 airports. we are using a dot matrix printer (not mac compatible)- to print lots of invoices. dot matrix is connected directly to the iMac to print. i want to connect the dot matrix printer to the airport express, and print just like the hp multifunction printer. cannot print. please help many thanx