My son just got a new XP computer and we want to copy about 5GB of music files.

Both computers (as well as 2 others) are connected to a Linksys router to the Internet.

In the Windows Home Networking Wizard, what is the correct selection with regard to how the computer connects to the network?

None of these computers is the "host" connected to the Internet. That's the router's job.

When I set up both computers as "clients", they can't see each other under MSHOME with sharing turned on.

Both computers have Zone Alarm. Could there be a firewall issue preventing us from seeing them under MSHOME in My Network Places?