Win98 PC & Win2K PC on Cable Modems

I have a computer that is running Windows 98 and one that has Windows 2000serv. Both are connected to the internet via cable modem. I want to be able to browse the Win98 machine from the 2000. I have File and Printsharing activated on it and the group name is the same on the server, But I still can’t see it. Both are connected with a hub, and the Cable modem as well.