Here's all I want to do:

I want visitors to place the address for site1 in the browser, and be forwarded to site2.

I don't want to transfer the entire domain, I am not changing servers, I just want people that go to site1 to see site2 instead. Just like this:

I can switch that domain to point to any web site in the universe, but I'm told it won't work with what I need to do because the server for site2 needs to have a virtual web site or a host header set up with the domain name of site1.

I'm an admitted rookie, but I have no idea what he's talking about.

Any help would be appreciated.