Post Thumb Plugin Probleme

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


<?php if (have_posts()) : ?>
<?php while (have_posts()) : the_post(); ?>
<div class="art-Post">
    <div class="art-Post-tl"></div>
    <div class="art-Post-tr"></div>
    <div class="art-Post-bl"></div>
    <div class="art-Post-br"></div>
    <div class="art-Post-tc"></div>
    <div class="art-Post-bc"></div>
    <div class="art-Post-cl"></div>
    <div class="art-Post-cr"></div>
    <div class="art-Post-cc"></div>
    <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>
<?php $icons = array(); ?>
<?php if (!is_page()): ?><?php ob_start(); ?><?php the_time(__('F jS, Y', 'kubrick')) ?>
<?php $icons[] = ob_get_clean(); ?><?php endif; ?><?php if (!is_page()): ?><?php ob_start(); ?><?php _e('Author', 'kubrick'); ?>: <a href="#" title="<?php _e('Author', 'kubrick'); ?>"><?php the_author() ?></a>
<?php $icons[] = ob_get_clean(); ?><?php endif; ?><?php if (0 != count($icons)): ?>
<div class="art-PostHeaderIcons art-metadata-icons">
<?php echo implode(' | ', $icons); ?>


</div>
<?php endif; ?>
<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>
<?php ob_start(); ?>
<?php $icons = array(); ?>
<?php if (!is_page() && get_the_tags()): ?><?php ob_start(); ?><img src="<?php bloginfo('template_url'); ?>/images/PostTagIcon.png" width="32" height="32" alt="" />
<?php the_tags(__('Tags:', 'kubrick') . ' ', ', ', ' '); ?>
<?php $icons[] = ob_get_clean(); ?><?php endif; ?><?php if (!is_page() && !is_single()): ?><?php ob_start(); ?><img src="<?php bloginfo('template_url'); ?>/images/PostCommentsIcon.png" width="32" height="32" alt="" />
<?php comments_popup_link(__('No Comments »', 'kubrick'), __('1 Comment »', 'kubrick'), __('% Comments »', 'kubrick'), '', __('Comments Closed', 'kubrick') ); ?>
<?php $icons[] = ob_get_clean(); ?><?php endif; ?><?php if (0 != count($icons)): ?>
<div class="art-PostFooterIcons art-metadata-icons">
<?php echo implode(' | ', $icons); ?>


</div>
<?php endif; ?>
<?php $metadataContent = ob_get_clean(); ?>
<?php if (trim($metadataContent) != ''): ?>
<div class="art-PostMetadataFooter">
<?php echo $metadataContent; ?>


</div>
<?php endif; ?>


</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-tl"></div>
    <div class="art-Post-tr"></div>
    <div class="art-Post-bl"></div>
    <div class="art-Post-br"></div>
    <div class="art-Post-tc"></div>
    <div class="art-Post-bc"></div>
    <div class="art-Post-cl"></div>
    <div class="art-Post-cr"></div>
    <div class="art-Post-cc"></div>
    <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'); ?><?php include (TEMPLATEPATH . '/sidebar2.php'); ?>
</div>
<div class="cleared"></div>


<?php get_footer(); ?>