I did:
1) created the posizone module;
2) I have added the name of the new module in the file default.php (see img)
<?php
/**
* @package T3 Blank
* @copyright Copyright (C) 2005 - 2012 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('_JEXEC') or die;
?>
<?php if ($this->countModules('personale-top')) : ?>
<!-- Parallax 1 -->
<section class="personale-top">
<!-- Top-Left Menu -->
<div class="<?php $this->_c('personale-top') ?>">
<jdoc:include type="modules" name="<?php $this->_p('personale-top') ?>" style="raw" />
</div>
<!-- //Parallax 1 -->
</section>
<?php endif ?>