This is a 3d rotating carousel image gallery that displays all images attached to a post or page, along with associated captions and descriptions.
WordPress generates thumbnails of different sizes when an image is uploaded. Since this gallery uses custom image sizes, the custom sized thumbnails will not have been generated if the images were uploaded to your blog before this plugin was installed. To regenerate plugins, the aptly named Regenerate Thumbnails plugin is recommended.
Unfortunately, the gallery can only display images attached to the post or page that it will be displayed in.