Not working!

Just purchased this extension and can't get it to work.
Here is an example of a meta box. I want this to show up on the default page template, as well as a custom post type that uses single-projects.php not sure if that is how I would go about using it on custom post types, but it's also not showing up on default pages.

	$meta_boxes[] = array(
		// Meta box id, UNIQUE per meta box. Optional since 4.1.5
		'id' => 'project_images',

		// Meta box title - Will appear at the drag and drop handle bar. Required.
		'title' => __( 'Additional Images', 'meta-box' ),

		'include' => array(
			// List of page templates. Can be array or comma separated. Optional.
			'relation' => 'OR',
        	'template' => array( 'page.php', 'single-projects.php' ),
		),

		// Post types, accept custom post types as well - DEFAULT is array('post'). Optional.
		'post_types' => 'page',

		// Where the meta box appear: normal (default), advanced, side. Optional.
		'context' => 'normal',

		// Order of meta box: high (default), low. Optional.
		'priority' => 'high',

		// Auto save: true, false (default). Optional.
		'autosave' => true,

		// List of meta fields
		'fields' => array(
			// IMAGE ADVANCED (WP 3.5+)
			array(
				'name'             => __( 'Image Advanced Upload', 'meta-box' ),
				'id'               => "{$prefix}imgadv",
				'type'             => 'image_advanced',
			),
		),	
	);