The predominate questions I have are:
What determines the template on the sample page? My sample page has 3 gray 3.5x5 templates.
How to create template 3.5x5, 2 to page, continue page after page with 2 per page?
The print size that you have chosen is what makes the template as Ray indicated; drag the template to the upper right preview panel/
The things you see on the page marked sample are not really templates, but simulated place holders to give the user a reminder of the size print that is current, and how is might look on the page with multiple prints.
See this video, and then come back on here with follow up questions.
http://www.youtube.com/watch_popup?v=1TjdBbj-r2E&vq=hd720This should help. It will show you how to create, set up, and create a template for future use, and how to SAVE it and then Call upon it when needed.
Fred