Small Win 98 Network

We’re trying to make a small PC lab (4 computers)of Windows 98 machines connected with CAT5 cable to a hub. I have done something similar to this before, using Win 95 PCs and I’ve totally forgotten how to do it. I can’t get the PCs to communicate,but I know that this can be done.

If anyone has the time/patience to explain how to do this, please do.