This is the php file for displaying individual Omeka items, I cannot get it to print Item Type Metadata at the top of the page

show.php

<?php echo head(array('title' => metadata('item', array('Dublin Core', 'Title')),'bodyclass' => 'items show')); ?>
<div id="primary">

    <!-- Prints the title of the item as assigned in Omeka user interface in h1 format -->
    <?php if (metadata('item','has tags')): ?>
    <?php endif;?>

    

    <!-- Print Dublin Core elements that are not empty -->
	<h1><?php echo metadata('item', array('Dublin Core','Title')); ?></h1>

    <!-- Items metadata -->
    <div id="item-metadata">
        <?php echo all_element_texts('item'); ?>
    </div>

    <!-- Prints thumbnails of images or files in that item -->
    <h3><?php echo __('Files'); ?></h3>
    <div id="item-images">
         <?php echo files_for_item(); ?>
    </div>

    <!-- Prints title "collection" and link to collections for that item-->
   <?php if(metadata('item','Collection Name')): ?>
      <div id="collection" class="element">
        <h3><?php echo __('Collection'); ?></h3>
        <div class="element-text"><?php echo link_to_collection_for_item(); ?></div>
      </div>
   <?php endif; ?>

    <!-- Prints the tags associated with the item -->
    <div id="item-tags" class="element">
        <h3><?php echo __('Tags'); ?></h3>
        <div class="element-text"><?php echo tag_string('item'); ?></div>
    </div>

    <!-- The following prints a full citation for this item. -->
    <div id="item-citation" class="element">
        <h3><?php echo __('Citation'); ?></h3>
        <div class="element-text"><?php echo metadata('item','citation',array('no_escape'=>true)); ?></div>
    </div>
       <?php fire_plugin_hook('public_items_show', array('view' => $this, 'item' => $item)); ?>

    <!-- Navigation links for previous and next item -->
    <ul class="item-pagination navigation">
        <li id="previous-item" class="previous"><?php echo link_to_previous_item_show(); ?></li>
        <li id="next-item" class="next"><?php echo link_to_next_item_show(); ?></li>
    </ul>

</div> <!-- End of Primary. -->

 <?php echo foot(); ?>