You can use “JPG” ’s , “PNG” ’s , “GIF” ’s and “SWF” ’s as a thumbnail or as a big scrollable content… Works with two pictures(and/or “SWF” ’s) , one for the thumbnail and one for the big scrollable content…USING A SEPARATE THUMBNAIL AND A SEPARATE SCROLLABLE CONTENT AVOIDS CORRUPTION OF THE PICTURES , AND GIVES YOU TOTAL CONTROL OF PICTURE QUALITY ...