I may have misunderstood the requirement, but take a look at
http://www.gmayor.com/photo_gallery_template.html which should do what you require.
If I have misunderstood, or the format of your template doesn't allow it the use of such a gallery, then a vba process to loop through your graphics, and create a new document from the template every 4 graphics and add them to bookmarked locations is relatively simple to achieve. What is less clear is what you mean about the image names?