I bought this unit to replace my hub. I have three computers in a wired network. Two have XP home and the third has win98. I wanted to use the WRT45G for wireless file sharing from the computer it's plugged into and the other two computers. The other two have wireless cards installed. I have no broadband connection available, therefor nothing plugged into the "internet" jack. Is there any firmware version that will enable the WRT45G to route wireless signals to the four wired ports?