Noodle123 on "Display posts from one category on one page"

Thanks, you've been a big help. I do have one more question though. I don't have anything that looks like that code. At least I don't think so.

This is from my page.php file:

<?php

/*
 * @template  Mystique
 * @revised   December 20, 2011
 * @author    digitalnature, http://digitalnature.eu
 * @license   GPL, http://www.opensource.org/licenses/gpl-license
 */

// The "page" post type.
// pagename.php, page-slug.php, page-id.php or page-custom_template can override it.

?>

<?php atom()->template('header'); ?>

<!-- main content: primary + sidebar(s) -->
<div id="mask-3" class="clear-block">
  <div id="mask-2">
    <div id="mask-1">

      <!-- primary content -->
      <div id="primary-content">
        <div class="blocks clear-block">

          <?php atom()->action('before_primary'); ?>

          <?php the_post(); ?>

          <?php atom()->action('before_post'); ?>

          <!-- page content -->
 <div id="post-<?php the_ID(); ?>" <?php post_class('primary'); ?>>

            <?php if(!atom()->post->getMeta('hide_title')): ?>
            <h1 class="title"><?php the_title(); ?></h1>
            <?php endif; ?>

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

            <?php atom()->post->pagination(); ?>

            <?php atom()->controls('post-edit'); ?>
          </div>
          <!-- /page content -->

          <?php atom()->action('after_post'); ?>

          <?php atom()->template('meta'); ?>

          <?php atom()->action('after_primary'); ?>

        </div>
      </div>
      <!-- /primary content -->

      <?php atom()->template('sidebar'); ?>

    </div>
  </div>
</div>
<!-- /main content -->

<?php atom()->template('footer'); ?>

I'm not really sure where I need to put that like of code.