How to add embedded YouTube video at the end of ViewSlideshow - Drupal 6
One of our Drupal Developers has written an article on the subject of creating Slideshows in Drupal using embedded Youtube Videos. Take a look, maybe it may help you to sole your problem. http://wearepropeople.com/blog/how-to-create-slideshows-with-embedded-youtube-videos-in-drupal-7