Search form not displaying results

Hi all

I was wondering if any one can help me please. I have a search form on my site and i cant seem to get the results to display. Nothing reads at all not even a "sorry, there are no results" text. I'm sure it's something that i have done but i cant seem to figure out what.

Any ideas would be a big help. I have supplied the code for search below:

<perch:before>
    <h1>Search results for “<perch:search id="search_key" />”</h1>

    <perch:if exists="paging">
        <p><perch:search id="total" /> results</p>
    </perch:if>
        <ul>
</perch:before>

        <li class="<perch:search id="perch_item_odd" />">
            <h2><a href="<perch:search id="result_url" />"><perch:search id="result_title" /></a></h2>
            <perch:if exists="result_excerpt"><p class="excerpt">…<perch:search id="result_excerpt" encode="false" />…</p></perch:if>
            <p><a href="<perch:search id="result_url" />">
                <perch:if exists="result_pageNavText">
                    <perch:search id="result_pageNavText" />
                <perch:else />
                    <perch:search id="result_url" />
                </perch:if>
                </a></p>
        </li>

<perch:after>
    </ul>

    <perch:if exists="paging">
        <div class="paging">
            Page <perch:search id="current_page" /> of <perch:search id="number_of_pages" />
            <perch:if exists="not_first_page">
                <a href="<perch:search id="prev_url" encode="false" />">Previous</a>
            </perch:if>
            <perch:if exists="not_last_page">
                <a href="<perch:search id="next_url" encode="false" />">Next</a>
            </perch:if>
        </div>
    </perch:if>
</perch:after>

SEARCH RESULTS.HTML

<perch:noresults>
    <perch:if exists="search_key">
        <h1>Search results for “<perch:search id="search_key" />”</h1>
    <perch:else />
        <h1>Search</h1>
    </perch:if>
    <perch:if exists="search_key">
        <p>Sorry, there are no results for “<perch:search id="search_key" />”.</p>
    </perch:if>
</perch:noresults> 

THIS IS WHAT I HAVE ON MY SEARCH.PHP PAGE

<?php 
  if (isset($_GET['q'])) {
    $query = $_GET['q'];  
  }else{
    $query = '';
  } 
  $opts = array(
    'count'=>5
  );
  perch_content_search($query,$opts); 
?>