Thanks so much for your help! In the end I was able to do it by calling the default date and permalinks instead of adding a separate custom field for those.
The result can be seen at http://nerdfit.com/videos
The only problem I have now is that I can’t get pagination going with this custom post type archive. Is there any way I can show the “older entries” and “newer entries” links at the bottom of the loop?
This is my code so far:
<div class="wrap">
<?php
$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
$args = array(
'post_type' => 'video',
'paged' => $paged,
'posts_per_page' => 9);
$query = new WP_Query( $args ); ?>
<?php if ( $query->have_posts()) : while ( $query->have_posts() ) : $query->the_post(); ?>
<div class="video-item">
<div class="video-image">
<a href="<?php echo get_permalink(); ?>" ><?php the_post_thumbnail(); ?></a>
</div>
<h2><a href ="<?php echo get_permalink(); ?>" ><?php the_title(); ?></a></h2>
<h3><?php echo get_the_date(); ?></h3>
</div>
<?php endwhile; ?>
<?php
// get_next_posts_link() usage with max_num_pages
echo get_next_posts_link( 'Older Entries', $the_query->max_num_pages );
echo get_previous_posts_link( 'Newer Entries' );
?>
<?php
// clean up after the query and pagination
wp_reset_postdata();
?>
<?php else: ?>
<p><?php _e( 'Sorry, no posts matched your criteria.' ); ?></p>
<?php endif; ?>
</div>
</section>
