[Plugin: Flip Pong V] Images appearing as 400×400 in one vertical column

Installed the plugin, copied the single—.php file to my theme directory. Created a new flipbook with 590×400 size. Tried to view the flipbook, and i get the flipbook border, in the the 590×800 border i can see the images i uploaded, but they are shown in 400×400 size. the second page is empty, instead of the next page being there, it is shown under the first image and each next image is placed under the previous one. no arrows are shown on the buttons, clicking on the buttons does nothing. the flip book is shown the same way in Opera, Chrome and Firefox (all running in Linux).

http://wordpress.org/extend/plugins/flip-pong-v/