<?php } ?>
      <?php if (have_posts()) : while (have_posts()) : the_post(); ?>
      <div class="post">

        <?php
        if(has_post_thumbnail()) {
            the_post_thumbnail();
        } elseif(get_post_meta($post->ID, 'post_thumbnail_value', true) != '') { ?>
            <a href="<?php the_permalink(); ?>"><img class="post-image" src="<?php bloginfo('template_directory') ?>/timthumb.php?src=<?php echo get_post_meta($post->ID, 'post_thumbnail_value', true); ?>&w=154&h=154&zc=1" alt="<?php the_title(); ?>" /></a>
        <?php } ?>