Custom Posts Page Template

I am trying to display posts using a custom page tempalte. I set up my blogs page through Settings/Reading and defining the page there, and then defining the template in that page. The code in the template page is:

<?php
/*
Template Name: Blog page
*/

while(have_posts()) { // original main loop - page content
  the_post();
  the_title(); // title of the page
  the_content(); // content of the page
  // etc...
}

// now we display list of our custom-post-type posts

// first obtain pagination parametres
$paged = 1;
if(get_query_var('paged')) {
  $paged = get_query_var('paged');
} elseif(get_query_var('page')) {
  $paged = get_query_var('page');
}

// query posts and replace the main query (page) with this one (so the pagination works)
query_posts(array('post_type' => 'my_post_type', 'post_status' => 'publish', 'paged' => $paged))

// pagination
next_posts_link();
previous_posts_link();

// loop
while(have_posts()) {
  the_post();
  the_title(); // your custom-post-type post's title
  the_content(); // // your custom-post-type post's content
}

wp_reset_query() // sets the main query (global $wp_query) to the original page query (it obtains it from global $wp_the_query variable) and resets the post data

// So, now we can display the page-related content again (if we wish so)
while(have_posts()) { // original main loop - page content
  the_post();
  the_title(); // title of the page
  the_content(); // content of the page
  // etc...
}

?>

<?php get_header(); ?>
	<div id="container" class="clrfix">
		<div class="contents">
			<?php if ( have_posts() ): while ( have_posts() ): the_post(); ?>

				<p>Date: <?php echo date("l, F d, Y"); ?> | <?php comments_number(); ?></p>

				<?php the_content(); ?> 

				<h4>This is post #<?php the_ID(); ?> | Author: <?php the_author(); ?></h4>
				<p>Filed under: <?php the_category(','); ?> | <?php edit_post_link(); ?></p>

			<?php endwhile; ?>

			<p><?php previous_post_link(); ?> | <?php next_post_link(); ?></p>

		<?php else : ?>

			<p>Sorry, no posts matched your criteria.</p>

		<?php endif; ?>
		</div>
		<div class="sidebar">
			<?php get_sidebar(); ?>
		</div>
	</div>

<?php get_footer(); ?>

It is not working and displaying the regular index.php format. What am I doing wrong?