I have the First Decade & have it installed on a 2 computer network. I can't find World Builder on one and I haven't been able to set up so the 2 computers can oppose each other. Can anyone help with either problem?

See our World builder faq section  for accessing World Builder.

I'm sure others have setup a LAN network before and should be able to help. Just searching for how to setup a LAN network with your favorite search engine should bring up many results.