orderby=meta_value im loop verwenden - wo?

<?php
/**
 * The loop that displays posts.
 *
 * The loop displays the posts and the post content.  See
 * http://codex.wordpress.org/The_Loop to understand it and
 * http://codex.wordpress.org/Template_Tags to understand
 * the tags used in it.
 *
 * This can be overridden in child themes with loop.php or
 * loop-template.php, where 'template' is the loop context
 * requested by a template. For example, loop-index.php would
 * be used if it exists and we ask for the loop with:
 * <code>get_template_part( 'loop', 'index' );</code>
 *
 * @package WordPress
 * @subpackage Twenty_Ten
 * @since Twenty Ten 1.0
 */
?>


<?php /* Display navigation to next/previous pages when applicable */ ?>
<?php if ( $wp_query->max_num_pages > 1 ) : ?>
    <div id="nav-above" class="navigation">
        <div class="nav-previous"><?php next_posts_link( __( '<span class="meta-nav">&larr;</span> Older posts', 'irmenten' ) ); ?></div>
        <div class="nav-next"><?php previous_posts_link( __( 'Newer posts <span class="meta-nav">&rarr;</span>', 'irmenten' ) ); ?></div>
    </div><!-- #nav-above -->
<?php endif; ?>
<!-- #abhierdieloop -->
<?php /* If there are no posts to display, such as an empty archive page */ ?>
<?php if ( ! have_posts() ) : ?>
<div id="post-0" class="post error404 not-found">
        <h1 class="entry-title"></h1>
        <div class="entry-content"><b>Leider nichts gefunden. </b>Kein Treffer dabei. Versuchen Sie es mit anderen Suchbegriffen.<br><br>
            <?php get_search_form(); ?>Im Kalender rechts k&ouml;nnen Sie durch das ganze Jahrzehnt bl&auml;ttern.<br>
            Dort sind alle Tage, an denen ein Event stattfindet oder stattfand, gekennzeichnet.
        </div><!-- .entry-content -->
    </div><!-- #post-0 -->
<?php endif; ?>


<?php
    /* Start the Loop.
     *
     * In Twenty Ten we use the same loop in multiple contexts.
     * It is broken into three main parts: when we're displaying
     * posts that are in the gallery category, when we're displaying
     * posts in the asides category, and finally all other posts.
     *
     * Additionally, we sometimes check for whether we are on an
     * archive page, a search page, etc., allowing for small differences
     * in the loop on each template without actually duplicating
     * the rest of the loop that is shared.
     *
     * Without further ado, the loop:
     */ ?>
<?php while ( have_posts() ) : the_post(); ?>


<?php /* How to display posts in the Gallery category. */ ?>


    <?php if ( in_category( _x('gallery', 'gallery category slug', 'irmenten') ) ) : ?>
    galeri-dis
        <div id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
            <h2 class="entry-title"><a href="<?php the_permalink(); ?>" title="<?php printf( esc_attr__( 'Permalink to %s', 'irmenten' ), the_title_attribute( 'echo=0' ) ); ?>" rel="bookmark"><?php the_title(); ?></a></h2>
            <div class="entry-meta">
                <?php irmenten_posted_on(); ?>
            </div><!-- .entry-meta -->
            <div class="entry-content">
            </div><!-- .entry-content -->
</div><!-- #post-## -->
<?php /* How to display all other posts. */ ?>


    <?php else : ?>






<?php $stripe = ($stripe == 'dark') ? 'bright' : 'dark'; ?><div class="post <?php echo $stripe; ?>" id="post-<?php the_ID(); ?>">
<?php $kartenlink = get_post_meta($post->ID, 'kartenlink', true); ?>
<?php $kontingent = get_post_meta($post->ID, 'kontingent', true); ?>
<?php $verfugbarkeit = get_post_meta($post->ID, 'verfugbarkeit', true); ?>
<?php $veranstaltungsort = get_post_meta($post->ID, 'veranstaltungsort', true); ?>
<?php $erfolg = get_post_meta($post->ID, 'erfolg', true); ?>
<?php $fallsverstrichen = 'display:none;'; ?>
<div id="veranstaltungsort"><a href="<?php bloginfo('url'); ?>/lokalitaten/" target="_self" class="mausgrau-weiss"> <?php echo $veranstaltungsort; ?></a> </div><!--/veranstaltungsort-->
<div id="kuenstlerinfo"><?php if ( $erfolg == "brunch" ) { ?>
<a onclick="window.open('http://www.kostwerk.de','kostwerk','resizable=yes,scrollbars=yes,width=900,height=700,left='+(screen.availWidth/2-450)+',top='+(screen.availHeight/2-350)+'');" href="" class="mausgrau-weiss"> zum Kostwerk</a>
<?php } else { ?>
<a href="../irmenten/<?php bloginfo('url'); ?>/kunstler/<?php echo $erfolg; ?>" target="_self" class="mausgrau-weiss"> K&uuml;nstlerinfo</a>
<?php } ?></div><!--/kuenstlerinfo-->
<div id="karten"><?php if ( $kontingent == "ja" ) { ?>
            <div id="noch-karten" style=" <?php if ( in_category('21') ) { ?>
            <?php echo $fallsverstrichen; ?><?php } ?>">
            <a onclick="window.open('<?php echo $kartenlink; ?>','amiando','resizable=yes,scrollbars=yes,width=900,height=700,left='+(screen.availWidth/2-450)+',top='+(screen.availHeight/2-350)+'');" href=""><img src="<?php bloginfo('template_url'); ?>/images/karten-ja.gif" border="0" /></a></div><!--/diff-->
        <?php } else if ( $kontingent == "nein" ) { ?>
            <div id="ausverkauft"><img src="<?php bloginfo('template_url'); ?>/images/karten-nein.gif" border="0" /></div><!--/diff-->
            <?php } else if ( $kontingent == "brunch" ) { ?>
            <div id="ausverkauft"><a onclick="window.open('<?php echo $kartenlink; ?>','amiando','resizable=yes,scrollbars=yes,width=900,height=700,left='+(screen.availWidth/2-450)+',top='+(screen.availHeight/2-350)+'');" href=""><img src="<?php bloginfo('template_url'); ?>/images/brunch.gif" border="0" /></a></div><!--/diff-->
        <?php } ?></div>                
<div class="itemhead">
<div id="itemoben">
<a href='<?php the_permalink() ?>'rel='bookmark' title='<?php the_title(); ?>' class="links"><?php the_title(); ?></a>
</div>
</div>
<div id="programminfo">
<?php $programmname = get_post_meta($post->ID, 'programmname', true); ?>
<div id="programmname"><?php echo $programmname; ?></div></div><!--/programminfo-->
<div class="dasartikelbild"><a href='<?php the_permalink() ?>'
rel='bookmark' title='<?php the_title(); ?>'><?php if ( has_post_thumbnail() ) {
        the_post_thumbnail(array(100,100), array("class" => "alignleft post_thumbnail"));}?></a></div>
<div id="listendarstellung">
<?php global $more; $more = 0; ?><?php the_content('<b>... mehr &rsaquo;</b>',true); ?>
</div>
</div><?php edit_post_link('Edit this entry.', '<p>', '</p>'); ?><!-- end item -->
<?php endif; // This was the if statement that broke the loop into three parts based on categories. ?>
<?php endwhile; // End the loop. Whew. ?>
<div style="position:relative"><div style="height:46px; background-color:#FFFFFF; width:608px; position:absolute; top:-3px;"></div></div>
<?php if (  $wp_query->max_num_pages > 1 ) : ?>
                <div id="nav-below" class="navigation">
                    <div class="nav-previous"><?php next_posts_link( __( '<span class="meta-nav">&larr;</span> Older posts', 'irmenten' ) ); ?></div>
                    <div class="nav-next"><?php previous_posts_link( __( 'Newer posts <span class="meta-nav">&rarr;</span>', 'irmenten' ) ); ?></div>
                </div><!-- #nav-below -->




<?php endif; ?>