Pages templates are keep in a templates folder. Templates placed in this folder will show up in the list of templates in the “New From Template Chooser” window in Pages. This folder is located in your home directory under the Applications support iWork directory (/Users/yourname/Library/Application Support/iWork/Pages/templates/My Templates). This directory may not be there under iWork and you will have to create it. Place your templates here and they will show up when you need them.