Begginers guide to networking tutorial

Sorry ill try to describe my problem better.

Base machine - Windows 98, 1 NIC and a cable connection.

Server - Windows 95, 1 NIC and a cable connection.

Same problem as my last post but, the way the connection i set up is my cable internet modem box (the thing that changes it from coaxial cable to RJ45) goes the port 5 on my hub.  My base goes to port 4.  My server goes to port 3.

Now if only one are on at a time, they access the internet and the network fine, but I want them to be able access the net at the same time.  Thanks for all your help.