[Plugin: Multiple Post Thumbnails] Displaying Secondary Post Thumbnail

I have been able to get the “Secondary Post Thumbnail” field to show up in the admin, but I am wondering if I am able to call that image as you can with the “Featured Post Thumbnail” using this bit of code…

<?php echo get_the_post_thumbnail($post->ID); ?>

In essence, I would like to pull the Secondary thumbnail into a page/post of my choosing using a similar function.

Any help is appreciated.