Nur Beiträge einer Kategorie anzeigen

<ul>
 <?php
    $today = current_time('mysql', 1);
    if ( $recentposts = $wpdb->get_results("SELECT ID, post_title FROM $wpdb->
posts WHERE post_status = 'publish' AND post_date_gmt < '$today' ORDER BY post_date DESC LIMIT 10")):
  ?><li id="recents">
    <h2><?php _e("letzte einträge"); ?></h2>
    <ul>
      <?php
foreach ($recentposts as $post) {
        if ($post->post_title == '')
                $post->post_title = sprintf(__('Post #%s'), $post->ID);
        echo "<li><a href='".get_permalink($post->ID)."'>";
        the_title();
        echo '</a></li>';
}
      ?>
    </ul>
  </li>
  <?php endif; ?>