how can i add this custom coding into marketpress file

how can i add this custom coding into market press file so i can run classified pluggin with market press and the product in classified can merge with marketpress product all together? any direction would be greatly appreciated. thank you
<?php
$new_loop = new WP_Query( array(
'post_type' => 'classifieds',
'post_status' => 'publish',
'posts_per_page' => 5 // put number of posts that you'd like to display
) );
?>

<?php if ( $new_loop->have_posts() ) : ?>
<?php while ( $new_loop->have_posts() ) : $new_loop->the_post(); ?>

<h2><?php the_title(); ?></h2>

<?php the_content(); ?>

<?php endwhile;?>
<?php else: ?>
<?php endif; ?>
<?php wp_reset_query(); ?>