how do I set up a centerfold using one graphic
My husband and I recently took over editing a newsletter for our car club. The previous editor used InDesign which we don't have. We are recreating it in Pages and so I have some formatting questions. The newsletter is really in a magazine format, 8.5x11 and is about 20 pages long. I had to set up the pages to have a 0.125 marginal bleed for the publisher. I have to include a centerfold which is one picture. I don't know how to set this up in pages. I think I need to create a new section and have that page be 17" wide but "insert section" is grayed out. I'd appreciate anyone's guidance, thanks!
MacBook Pro, iPhone, Apple TV, iPod, iMAC, Mac OS X (10.6.6)