How do I re-name my zone--content.tpl.php file for a separate front page layout?
This was too much for a comment so I put it in an answer. newdwardss's answer contains the right methodology, but it doesn't address the Omega theme.

You can use the same logic as in that answer, but customise it for the zone template:

function MYTHEME_preprocess_zone(&amp;$vars) {
  if ($vars['zone'] == 'content' &amp;&amp; drupal_is_front_page()) {
    $vars['theme_hook_suggestions'][] = 'zone__content__front';
  }
}


That will allow you to use a template file called zone--content--front.tpl.php which will only be used for that zone, and only when on the front page.