jquery cycle plugin captions/ wordpress theme

jquery cycle plugin captions/ wordpress theme

Hi there,
I'm really new at java script programming so please bear with my ignorance. I installed the portfolium theme by wpshower in my friend's site ( http://boyarskymurphy.com/wordpress/?portfolio=christ-church-tower)  and it works well, but the theme doesn't allow to display captions. 
I looked at the example on the jquery cycle site for displaying the metadata but i don't seem to integrate well the two snippets of code.

Here's the code from wpshower:

 <script type="text/javascript">
                jQuery(document).ready(function() {
                    jQuery('#show').after('<div id="show_nav">').cycle({
                        fx:     'fade',
                        speed:  500,
                        next: '#show',
                        timeout: 0,
                        pager:  '#show_nav',
after:   function() {                              // this is the snippet from jquery cycle
                        $('#caption').html(this.alt);
                           }  

                    });
                });

Any help will be much appreciated!