Seitentemplate funktioniert nicht!

<?php
/*
Template Name: Aktuelles
*/
?>


<?php get_header(); ?>
<div class="art-contentLayout">
<div class="art-content">


<?php query_posts('category_name=Aktuelles'); ?>


<?php if (have_posts()) : ?>
<?php while (have_posts()) : the_post(); ?>
<div class="art-Post">
    <div class="art-Post-body">
<div class="art-Post-inner art-article">
<h2 class="art-PostHeaderIcon-wrapper">
<span class="art-PostHeader"><a href="<?php the_permalink() ?>" rel="bookmark" title="<?php printf(__('Permanent Link to %s', 'kubrick'), the_title_attribute('echo=0')); ?>">
<?php the_title(); ?>
</a></span>
</h2>
<div class="art-PostContent">
<?php if (is_search()) the_excerpt(); else the_content(__('Read the rest of this entry &raquo;', 'kubrick')); ?>


</div>
<div class="cleared"></div>


</div>


    </div>
</div>


<?php endwhile; ?>
<?php
$prev_link = get_previous_posts_link(__('Newer Entries &raquo;', 'kubrick'));
$next_link = get_next_posts_link(__('&laquo; Older Entries', 'kubrick'));
?>
<?php if ($prev_link || $next_link): ?>
<div class="art-Post">
    <div class="art-Post-body">
<div class="art-Post-inner art-article">


<div class="art-PostContent">


<div class="navigation">
    <div class="alignleft"><?php echo $next_link; ?></div>
    <div class="alignright"><?php echo $prev_link; ?></div>
</div>


</div>
<div class="cleared"></div>




</div>


    </div>
</div>


<?php endif; ?>
<?php else : ?>
<h2 class="center"><?php _e('Not Found', 'kubrick'); ?></h2>
<p class="center"><?php _e('Sorry, but you are looking for something that isn’t here.', 'kubrick'); ?></p>
<?php if(function_exists('get_search_form')) get_search_form(); ?>
<?php endif; ?>


</div>
<?php include (TEMPLATEPATH . '/sidebar1.php'); ?>
</div>
<div class="cleared"></div>


<?php get_footer(); ?>