не работают кнопки в mod_info_slider

Установил mod_info_slider а в нем не работают кнопки переключения!Сделал все как написано в демо но все равно не работает.Что нужно исправить в коде? Вот демо: http://vital.pixelpointcreative.com/features/info-slider.html
вот код:

<?php

/*
// Pixel Point Creative "Info Slider" Module for Joomla!
// License: http://www.gnu.org/copyleft/gpl.html
// Copyright (c) 2011 Pixel Point Creative LLC.
// http://www.pixelpointcreative.com
// Adapted from mod_slider from http://www.dynatec.at
*/

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

if (!function_exists('randomkeys')) {
function randomkeys($length) {
$key = '';
$pattern = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
for($i = 0; $i < $length; $i++) {
$key .= $pattern{rand(0,strlen($pattern)-1)};
}
return $key;
}
}

global $mainframe;
$doc =& JFactory::getDocument();
// $lang =& JFactory::getLanguage(); $lang = explode('-', $lang->_lang); $lng = $lang[0];

// module parameters
$pos = trim($params->get('pos'));
$catid = trim($params->get('catid'));
$uniqueid = trim($params->get('uniqueid'));
$interval = trim($params->get('interval'));
$transition = trim($params->get('transition'));
$width = trim($params->get('width'));
$height = trim($params->get('height'));
$jquery_loaded = trim($params->get('jquery_loaded'));
$display_titles = trim($params->get('display_titles'));
$randomize = trim($params->get('randomize'));
$use_keyboard = trim($params->get('use_keyboard'));
$link_titles = trim($params->get('link_titles'));


if ($uniqueid == "") {
$uid = randomkeys(16);
} else {
$uid = $uniqueid;
}

if( !defined('PPC_JQUERY_INC') ){
JHTML::script('ppc.safejquery.start.js','modules/'.$module->module.'/js/');
JHTML::script('jquery-1.5.min.js','modules/'.$module->module.'/js/');
JHTML::script('ppc.safejquery.end.js','modules/'.$module->module.'/js/');
define('PPC_JQUERY_INC', 1);
}
JHTML::script('ppc.safejqueryplugin.start.js','modules/'.$module->module.'/js/');
JHTML::script('jquery.tools.min.js','modules/'.$module->module.'/js/');
JHTML::script('ppc.safejqueryplugin.end.js','modules/'.$module->module.'/js/');
?>
<?php
$doc->addStyleSheet('modules/mod_info_slider/elements/style.css');
$styles .= "div.csm_scrollable.$uid, div.csm_scrollable.$uid div.csm_items div {overflow:hidden;width: " . ($width -70) . "px; height : " . $height . "px;} \n";
$doc->addStyleDeclaration($styles);



$use_keyboard = ($use_keyboard == 0)?"keyboard:0,":"";
$transition = ($transition != '')?"speed:$transition,":"";

?>

<script type="text/javascript" language="javascript">
(function($){
$(document).ready(function(){
$('div.csm_scrollable.<?php echo $uid; ?>').scrollable({
<?php echo $use_keyboard . "\n" . $transition . "\n"; ?>
size:1,
circular:true
}).autoscroll(<?php echo $interval; ?>);
});
})(jQuery);
</script>


<div style="width:<?php echo $width;?>px;">
<?php if ($params->get('nav')) : ?>
<div style="position:relative;width:20px;float:left;margin-top:<?php echo ($height) / 2 -10;?>px">
<a class="prev prevbutton"></a>
</div>

<?php endif; ?>

<div class="csm_scrollable <?php echo $uid; ?>" >
<div class="csm_items">

<?php
jimport( 'joomla.database.table.content' );
$db =& JFactory::getDBO();
if ($randomize == 1) {
$order = "rand()";
} else {
$order = "ordering";
}

$query = "SELECT id FROM #__content WHERE state = '1' AND catid = '$catid' ORDER BY $order";
$db->setQuery($query);
$result = $db->loadResultArray();

$csm_table =& JTable::getInstance('content');


foreach ($result as $id) {
$csm_table->load($id);
$title = $csm_table->title;
$introtext = $csm_table->introtext;
?>
<div class="csm_item">
<?php if ($display_titles == 1) { ?>
<h1 class="contentheading">
<?php
if ($link_titles) {
$link = 'index.php?option=com_content&amp;view=article&amp;id='.$id;
if (isset($default_itemid) && $default_itemid != 0) {
$link .= '&amp;Itemid='.$default_itemid;
}
// $link .= '&amp;lang='.$lng;
$link = '<a href="'.JRoute::_($link).'">';
$title = $link . $title . '</a>';
}
echo $title; ?>
</h1>
<?php }
echo $introtext; ?>
</div>
<?php
}
?>

</div>
</div>

<?php if ($params->get('nav')) : ?>
<div style="position:relative;width:20px;float:right;margin-top:<?php echo ($height) / 2 -10;?>px; ">
<a class="next nextbutton" ></a>
</div>

<?php endif; ?>
</div>
Заранее большое спасибо!