Where to put the count-views code?

Hi 🙂
I’m having troubles putting the code in the functions.php , can you help me? I would really appreciate it..
I’m talking about this code: <?php echo get_post_meta( $post->ID, 'jetpack-post-views', true ); ?>
and I think to have to put it here

// New PostFooter
function replacement_postfooter($postfooter) {
global $id, $post;

if ($post->post_type == 'page' && current_user_can('edit_posts')) { /* For logged-in "page" search results */
$postfooter = '<div class="entry-utility">' . thematic_postfooter_posteditlink();
$postfooter .= "</div><!-- .entry-utility -->\n";
} elseif ($post->post_type == 'page') { /* For logged-out "page" search results */
$postfooter = '';
} else {
if (is_single()) {
$postfooter = '<div class="entry-utility">' . thematic_postfooter_postcategory() . thematic_postfooter_posttags();
} else {
$postfooter = '<div class="entry-utility">' . thematic_postfooter_postcomments() . thematic_postfooter_postcategory() . thematic_postfooter_posttags();
}
$postfooter .= "</div><!-- .entry-utility -->\n";
$postfooter .= '<div class="divider"> </div>';
return $postfooter;
}
}
add_filter('thematic_postfooter','replacement_postfooter');

but I don’t know how nor where! 🙁

I hope you do, thanks a lot!
P.S. Beautiful plugin, I needed it!

http://wordpress.org/plugins/jetpack-post-views/