Problems with dynamic sidebar

Hi,

I’ve installed a new theme for my blog (www.latedeparture.com) but for some reason the design template does not pick up the dynamic sidebar functionality even though it seems to be defined in the sidebar.php template:

<div class="main_left">
  <div align="left"><img src="<?php bloginfo('stylesheet_directory'); ?>/images/spacer.gif" alt="" align="top" style="width:100px; height:290px"/>
    <br />
    <br />
    <?php if ( function_exists('dynamic_sidebar') && dynamic_sidebar(__('Left sidebar','theme110')) ) : else : ?>
    <a href="<?php bloginfo('rss_url'); ?>"><img src="<?php bloginfo('stylesheet_directory'); ?>/images/rss.gif" alt="" align="top"/></a>
<br />
<div align="center"><?php include (TEMPLATEPATH . "/searchform.php"); ?></div>
  <br /></div>

  <div class="widget_style" id="categories">
    <div class="sideblock">
      <h3>&nbsp;Category</h3>
      <ul>
        <?php wp_list_cats('sort_column=name&hierarchical=0'); ?>
</ul></div>
			</div>

<br />
			<div class="widget_style">
    <div class="sideblock">
      <h3>&nbsp;Archives</h3>
          <ul>

Can anyone help?

Thanks a lot!

tom.