Hi - I want to use AirPort Express to send iTunes to my stereo. I get my internet connection from a wireless modem (Telus is my ISP). I can establish a new network between my MacBook and my AirPort Express which will work (iTunes comes out of my stereo), but then I cannot access my wireless network and get the internet (my Mac will only allow one network connection at a time); and I can connect an ethernet cable from my the WAN port on my wireless modem to my AirPort Express, which will also work. But I cannot get my AirPort Express to join my existing wireless network. Telus tells me this won't work because they won't allow another network to join their network. I'm guessing this would be a Telus Firewall issue, but when I look at the Firewall settings Telus provides, I'm not sure how to configure it to allow AirPort Express to join my existing network (it seems very complicated). Does anyone know? Thanks.