Multiple Search Boxes

I cannot seem to make the search button use both text fields to search with.

You will see the search box at the top of this page: https://www.dominicsutherlandserver3.hostoi.com

<div id="searchbox">
	<form method="get" id="searchform" action="<?php echo home_url( '/' ); ?>">
		<div>
<table width="910" height="78" border="0">
  <tr>
    <td width="455" height="23"><p>
        <label class="screen-reader-text" for="s">
          <?php _e( 'What?', THEME_TEXT_DOMAIN ); ?>
        </label>
    &nbsp;</p></td>
    <td width="455"><label class="screen-reader-text" for="s"><?php _e( 'Where?', THEME_TEXT_DOMAIN ); ?></label>&nbsp;</td>
    <td width="152">&nbsp;</td>
  </tr>
  <tr>
    <td width="303" height="49"><p>
        <input type="text" value="" name="s" id="s" size="32"/>
    </p></td>
    <td><p>
      <input type="text" value="" name="s" id="s" size="42"/>
    </p></td>
    <td><p>
      <input type="submit" id="searchsubmit" value="<?php _e('Search', THEME_TEXT_DOMAIN); ?>" />
    </p></td>
  </tr>
</table>
		</div>
	</form>
</div>