2nd featured image wordpress

Hi,
I am trying to add a second featured image to my php files.

I downloaded the custom fields plugin and followed the guide: http://wpsites.net/web-design/how-to-add-a-2nd-meta-box-for-a-different-featured-image/

I added the code to my functions, and created a 2nd feature box that is showing up in my posts pages – but now I need the posts php to pull the 2nd featured image that I created instead of the original wordpress feature image.

I dont have much php knowlede… can someone please tell me what code I should put into the following content.php:

<?php
/**
 * The default template for displaying content
 *
 * Used for both single and index/archive/search.
 *
 * @package WordPress
 * @subpackage Miinto
 * @since Miinto
 */
?>

<?php if (is_category() || is_tag() || is_author() || is_year() || is_month() || is_day()) { ?>

	<div class="mosaicflow__item">
		<a href="<?php the_permalink(); ?>" rel="bookmark">
			<?php if (has_post_thumbnail()) { ?>
				<?php the_post_thumbnail('thumbnail'); ?>
			<?php } else { ?>
				<img src="<?php echo get_template_directory_uri(); ?>/images/coming-soon.png">
			<?php } ?>
		</a>
		<a href="<?php the_permalink(); ?>" rel="bookmark">
			<h3><?php echo the_title(); ?></h3>
		</a>
		<p><?php the_time(get_option('date_format')); ?></p>
	</div>

<?php } else { ?>

	<article class="block">

	<header class="block">

	<?php

if ( has_post_thumbnail() ) { // check if the post has a Post Thumbnail assigned to it.
	the_post_thumbnail();
}
?>

 <h1><a href="<?php the_permalink(); ?>" rel="bookmark"> — &nbsp;<?php the_title(); ?> &nbsp; —</a></h1>
		</header>

		<div class="block title-bottom">
<!-- 			Posted at <?php //the_time(get_option('date_format')); ?> by <?php //the_author_posts_link(); ?> in <?php //the_category(', '); ?>
			<?php //edit_post_link(null, '&raquo; '); ?> -->		<!--	 <?php the_author_posts_link(); ?>  ·  <?php the_time(get_option('date_format')); ?>  ·  <?php the_category(', '); ?>	-->		<?php //edit_post_link(null, '&raquo; '); ?>
		</div>

		<div class="block">
			<?php the_content(); ?>
		</div>

		<footer class="block">
			<div>
				TAGS: <?php the_tags('', ', '); ?>
<?php echo '<hr />'; ?>

			</div>
		</footer>

	</article>

<?php } ?>

Any help is greatly appreciated
Link to site example post page: http://miinfashtest.com/2-delte-blog-saet/