Trying to set up a network so that I can download files from one computer to the other computer. I have a wireless router plus 4 ports for an Ethernet connection. How am I able to make the 2 computers communicate with each other and to select file transfers from one computer to the other? I've tried the network wizard and I can't get the 2 to communicate with each other. One computer has WinXPsp2 and the other has WinmediaXP. Any help would be great.