Cannot make ECC+ trigger in a template override

<?php
/**
 * @version 3.2.1 2014-02-04
 * @package Joomla
 * @subpackage Intellectual Property
 * @copyright (C) 2009 - 2014 the Thinkery LLC. All rights reserved.
 * @license GNU/GPL see LICENSE.php
 */

defined( '_JEXEC' ) or die( 'Restricted access');

JHtml::_('behavior.keepalive');
JHtml::_('behavior.formvalidation');
JHtml::_('behavior.tooltip');

// set user name and email if available in session or user object
if(!$this->requestform->getValue('sender_name')) $this->requestform->setValue('sender_name', '', ($this->user && $this->user->username) ? $this->user->username : '');
if(!$this->requestform->getValue('sender_email')) $this->requestform->setValue('sender_email', '', ($this->user && $this->user->email) ? $this->user->email : '');
?>

<?php if (isset($this->error)): ?>
	<div class="iproperty-error">
		<?php echo $this->error; ?>
	</div>
<?php endif; ?>

<div class="row-fluid">
    <div class="span12">
        <div class="span8 pull-left ip-request-wrapper">
            <p><?php echo JText::_('COM_IPROPERTY_REQUEST_SHOWING_TEXT' ); ?></p>
            <form name="sendRequest" method="post" action="<?php echo JRoute::_('index.php', true); ?>" id="adminForm" class="form-horizontal form-validate">
                <fieldset>
                    <div class="control-group">
                        <div class="control-label"><?php echo $this->requestform->getLabel('sender_name'); ?></div>
                        <div class="controls"><?php echo $this->requestform->getInput('sender_name'); ?></div>
                    </div>
                    <div class="control-group">
                        <div class="control-label"><?php echo $this->requestform->getLabel('sender_email'); ?></div>
                        <div class="controls"><?php echo $this->requestform->getInput('sender_email'); ?></div>
                    </div>
                    <div class="control-group">
                        <div class="control-label"><?php echo $this->requestform->getLabel('sender_dphone'); ?></div>
                        <div class="controls"><?php echo $this->requestform->getInput('sender_dphone'); ?></div>
                    </div>
                    <div class="control-group">
                        <div class="control-label"><?php echo $this->requestform->getLabel('sender_ephone'); ?></div>
                        <div class="controls"><?php echo $this->requestform->getInput('sender_ephone'); ?></div>
                    </div>
                    <div class="control-group">
                        <div class="control-label"><?php echo $this->requestform->getLabel('sender_preference'); ?></div>
                        <div class="controls"><?php echo $this->requestform->getInput('sender_preference'); ?></div>
                    </div>
                    <div class="control-group">
                        <div class="control-label"><?php echo $this->requestform->getLabel('sender_ctime'); ?></div>
                        <div class="controls"><?php echo $this->requestform->getInput('sender_ctime'); ?></div>
                    </div>
                    <div class="control-group">
                        <div class="control-label"><?php echo $this->requestform->getLabel('special_requests'); ?></div>
                        <div class="controls"><?php echo $this->requestform->getInput('special_requests'); ?></div>
                    </div>
                    <div class="control-group">
                        <div class="control-label"><?php echo $this->requestform->getLabel('copy_me'); ?></div>
                        <div class="controls"><?php echo $this->requestform->getInput('copy_me'); ?></div>
                    </div>
                    <div id="ip-dynamic-fields">
                        <?php //Dynamically load any additional fields from plugins. ?>
                        <?php foreach ($this->requestform->getFieldsets() as $fieldset) : ?>
                            <?php if ($fieldset->name != 'request'):?>
                                <?php $fields = $this->requestform->getFieldset($fieldset->name);?>
                                <?php foreach ($fields as $field) : ?>
                                    <div class="control-group ip-dynamic-field">
                                        <?php if ($field->hidden) : ?>
                                            <div class="controls">
                                                <?php echo $field->input;?>
                                            </div>
                                        <?php else:?>
                                            <div class="control-label">
                                                <?php echo $field->label; ?>
                                                <?php if (!$field->required && $field->type != "Spacer") : ?>
                                                    <span class="optional"><?php echo JText::_('COM_IPROPERTY_OPTIONAL');?></span>
                                                <?php endif; ?>
                                            </div>
                                            <div class="controls"><?php echo $field->input;?></div>
                                        <?php endif;?>
                                    </div>
                                <?php endforeach;?>
                            <?php endif ?>
                        <?php endforeach;?>
                    </div>
                    
<div style='border:5px solid red;'>
    <?php 
    	echo JHTML::_('content.prepare', '{easycalccheckplus}'); 
    	
    ?>
</div>

                    <div class="control-group">
                        <div class="control-label">&#160;</div>
                        <div class="controls"><input type="submit" class="btn btn-primary" alt="<?php echo JText::_('COM_IPROPERTY_SUBMIT_REQUEST'); ?>" title="<?php echo JText::_('COM_IPROPERTY_SUBMIT_REQUEST'); ?>" value="<?php echo JText::_('COM_IPROPERTY_SUBMIT_REQUEST'); ?>" /></div>
                    </div>
                </fieldset>
                <input type="hidden" name="option" value="com_iproperty" />
                <input type="hidden" name="view" value="property" />
                <input type="hidden" name="prop_id" value="<?php echo $this->p->id; ?>" />
                <input type="hidden" name="company_id" value="<?php echo $this->p->listing_office; ?>" />
                <input type="hidden" name="task" value="property.sendRequest" />
                <input type="hidden" name="layout" value="default" />
                <?php echo JHTML::_('form.token'); ?>
            </form>
        </div>
        <div class="span4 ip-summary-sidecol">
            <?php echo $this->loadTemplate('sidebar'); ?>
        </div>
    </div>
</div>