Page-based template in Enterprise Portal

I am setting up a new content reference in Enterprise Portal that will link to an external, non-peoplesoft URL.  The structure and content works using the default template.  The challenge is this.... I want to leverage a 'page-based' template so that the portal servlet proxies the request for the external content and then delivers the entire html page, including the content, back to the client.  I want the http request for the external content to come from the Portal servlet and NOT the client browser.  It is very clear from Peoplebooks that this is done using a 'page-based' template; however,