Find Thumbail when saving Draft

I used to use your code addition below to find the thumbnail when saving a draft and it worked perfectly, but am unsure about how and where to implement it in the latest 2.1 version of the plugin since the code has change so much over the past couple of years.

// Find video thumbnail when saving a post, but not on autosave

add_action('new_to_publish', 'save_video_thumbnail', 10, 1);
add_action('draft_to_publish', 'save_video_thumbnail', 10, 1);
add_action('pending_to_publish', 'save_video_thumbnail', 10, 1);
add_action('future_to_publish', 'save_video_thumbnail', 10, 1);

and immediately after add this:

// Save with draft

add_action('save_post', 'save_draft_video_thumbnail', 10, 1);

function save_draft_video_thumbnail($post_id) {
	$postdata = get_postdata($post_id);
	if ($postdata['post_status'] == 'draft') {
		get_video_thumbnail( $post_id );
	}
}

http://wordpress.org/plugins/video-thumbnails/