no you do not need to start it on server 1, nor do you need to install it to server 1,

What you need to do next is use xmlaccess to add it to portal.
on your server under

there will be a file called

that is the sample you need to edit to create a theme from a web module

IBM Certified System Administrator -- WebSphere Portal V6.0, V5.1, V5.0

IBM Certified Solution Developer -- WebSphere Portal V5.1, v6.0

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