<?php query_posts('post_type=ads&posts_per_page=4&tag=home-above&orderby=rand'); ?>
<?php if (have_posts()) : while (have_posts()) : the_post(); ?>



      <?php if ( function_exists('has_post_thumbnail') && has_post_thumbnail($post->ID) ) {
      $thumbnail = wp_get_attachment_image_src( get_post_thumbnail_id($post->ID), full ); ?>
        <img class="has-tip tip-top" data-width="210" title="<?php the_field('hover_text'); ?>" src="<?php echo $thumbnail[0]; ?>" />

      <?php }else{ ?>
      <img src="/DetroitSounds/wp-content/uploads/2013/01/youradhere.jpg" />
      <?php } ?>



<?php endwhile; ?>

<?php endif; wp_reset_query();?>

$args = array( 'post_type' => 'ads',
               'tax_query' => array(
                      array(
                      'taxonomy' => 'taxonomy_name_will_comes_here',
                      'field' => 'slug',
                      'terms' => 'category_name_will_comes_here'
                      )
                )
            );
$loop = new WP_Query( $args );
while ( $loop->have_posts() ) : $loop->the_post();
  the_title();
  echo '<div class="entry-content">';
  the_content();
  echo '</div>';
endwhile;

<?php query_posts('post_type=ads&posts_per_page=4&category_name=home-page-above&orderby=rand'); ?>