Greetings from Port Douglas Australia. Hope someone can help coz the local Apple shop can't. I have an ethernet network with a windoz xp pc with USB dsl modem, a G5 with airport card (OSX Tiger) and a G4 without airport card (OS 10.3.9) in another room. All working together fine, sharing files, printers and internet. I bought an Airport Express (AE) to connect to the G4 so I could have that connect wirelessly to the G5 and eliminate the need for an ethernet cable running through the house to the G4. Tried everything I have read but no luck after many hours messing around. The AE will work when connected to the hub with ethernet and allow the G5 to connect wirelessly but I want to do the opposite...have the G5 share it's internet connection out to the AE which then connects to the G4 with a short ethernet cable. Does anyone know of a good step by step procedure to set this up? I've looked on many forums but no one talks of a setup similar to the one I'm attempting.... Appreciate any help.