You need to first verify that all OS are capable of networking. 98SE is, XP Pro is, XP home is not. I'm not sure about the two Vista options. Then you can go into windows explorer and right click on each c: drive on each computer. Select sharing and security, assign a name, and set it to either be read only or read and write. Each computer will have to be named, so do that as well if you haven't. You can do that by right clicking on the My Computer icon on the desktop and selecting properties. Then, just go to each computer, windows explorer, tools -- map network drive -- then either type in the computer name and drive name or browse to it. That's basically it. I have 4 computers at home networked together plus my laptop. One used to run 98SE and the others XP pro, but I replaced the old one. Now all run XP Pro and it's seamless between them. Make sure you're router has a firewall and that each machine has a firewall too because once you share the drives, anyone can see them that can get on the network. You'll need an encrypted connection on the router too if you're running wireless.
2000 Black GT
2V with a fuel pump and some other goodies
Touched by the hand of a tuning god -- Mr. Wilson