Kwicks Menu Broken after WordPress Core Update

I am hoping to get some help with a Kwicks menu issue. I am helping with a website that is on WordPress 3.2.1. When I update it to 3.8.1., the Kwicks menu breaks. I haven’t updated any plugins, and the theme is exactly the same as in 3.2.1. However, now the menu does not expand and contract.

The theme is using Jquery 1.4.2 – which is also old, but when I upgrade, it doesn’t fix the issue.

Here’s the code form the Kwicks menu:

<script type="text/javascript" src="<?php bloginfo('template_directory'); ?>/js/jquery.easing.1.3.js"></script>
<script type="text/javascript" src="<?php bloginfo('template_directory'); ?>/js/jquery.kwicks-1.5.1.pack.js"></script>
<script type="text/javascript">
/*<![CDATA[*/
$(document).ready(function() {
                    $('.kwicks').kwicks({
					max : 600,
                    min : 300,
					spacing : 0,
                    duration: 200
  				});
});
/*]]>*/
</script>
<div id="slidewrap">
	<ul class="kwicks horizontal" >
<?php
    $slidecat = get_option('swt_slide_category');
	$slidecount = get_option('swt_slide_count');
 	$my_query = new WP_Query('category_name= '. $slidecat .'&showposts='.$slidecount.'');
    while ($my_query->have_posts()) : $my_query->the_post();$do_not_duplicate = $post->ID; $x++;
?>
			<li id="kwick_<?php echo $x; ?>">
			   <?php echo $i; ?>
               <span class="fadeout"></span>
                              <span class="fadeout"><p><?php if (function_exists('smart_excerpt')) smart_excerpt(get_the_excerpt(), 60); ?></p></span>

                <?php $screen = get_post_meta($post->ID,'slide', true); ?>
              <div class="excerpt">
                    <h2><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></h2>
                </div>
              <img src="<?php echo ($screen); ?>" alt="<?php the_title(); ?>" width="650" height="280" />
            </li>
          <?php endwhile; ?>
		</ul>
</div>