What is the difference between Caption and the name displayed beneath the thumbnail in the browser?
Caption is the descriptive text that you can enter to identify each picture. You can see it when you are playing a slideshow or on the large version of the picture on the Modify page. The name displayed beneath the thumbnail in the browser on each page is the filename for the picture. You cannot change the name beneath the thumbnail. This is the name under which the picture is saved on your hard drive or CD.