Our current solution to making a Game Site/Guidebook, is by using our WYSIWYG editor.  You select Guide Page under Create Content, and create your home page and navigation menu, please feel free to recruit an Admin for help.  And as you create your additional pages, you link them in.  We're happy to provide assistance with this when you are ready.  If you already have a game site, you can add a link directly from your campaign's main book page.