There too many parameters of this shorcode. You can find detailed instructions on the documentation file. Here are some examples;
Auto thumbnail, lightbox, left align[line]
[auto_thumb width=”300″ height=”100″ link=”” lightbox=”” align=”left” title=”” alt=”” iframe=””]images/4b.jpg [/auto_thumb]
[show_shortcode]
[auto_thumb width=”300″ height=”100″ link=”” lightbox=”” align=”left” title=”” alt=”” iframe=””] full path of your image [/auto_thumb]
[/show_shortcode] [line]
Auto thumbnail, link to a video, lightbox, right align[line]
[auto_thumb width=”300″ height=”100″ link=”http://vimeo.com/8245346″ lightbox=”” align=”right” title=”” alt=”” iframe=””]images/4b.jpg [/auto_thumb]
[show_shortcode]
[auto_thumb width=”300″ height=”100″ link=”http://vimeo.com/8245346″ lightbox=”” align=”right” title=”” alt=”” iframe=””] full path of your image [/auto_thumb]
[/show_shortcode] [line]
Auto thumbnail, link to an external url, lightbox, center align[line]
[auto_thumb width=”300″ height=”100″ link=”http://google.com” lightbox=”” align=”center” title=”” alt=”” iframe=”true”]images/4b.jpg [/auto_thumb]
[show_shortcode]
[auto_thumb width=”300″ height=”100″ link=”http://google.com” lightbox=”” align=”center” title=”” alt=”” iframe=”true”] full path of your image [/auto_thumb]
[/show_shortcode]