I tried to implement Timthumb but cant get both to work together.. I also used the https://www.binarymoon.co.uk/2009/10/timthumb-wordpress-mu/ for help on this manner but cant seem to make it work within the loop? <?php if( ( $video_thumbnail = get_video_thumbnail() ) != null ) { echo "<img src='<?php bloginfo('template_directory'); ?>/timthumb/timthumb.php?src='" .$video_thumbnail&w=300&h=170&zc=1. "' />"; } ?>