How do I get Drupal to preference one of a module's .tpls over another? I have modified a Global module so that it has a 2nd .tpl file. The original .tpl file is for sites using Zurb Foundation 5, the newer one I created is for sites using Zurb Foundation 6. Because this is a global module, these files exist in the same directory.

I've named the newer .tpl inline with what Theme Debug suggests (image_resp_item--f6.tpl.php).

Now, I've just got to tell the site that when it's using Foundation 6 to preference the .tpl named image_resp_item--f6.tpl.php.

However, I'm completely lost at where to start with this. Is this something I set up on the module's .module file? Or something I set up on each sites template.php file? Is there a hook I can use?

Sorry its kinda vague - been dumped in the deep end here - any advice is appreciated.
Update the modules weight in the DB.

This code is for a custom module, when enabled:

/**
 * Implements hook_enable()
 */
function YOUR_MODULE_enable() {
    db_update('system')
    -&gt;fields(array('weight' =&gt; 1))
    -&gt;condition('type', 'module')
    -&gt;condition('name', 'YOUR_MODULE')
    -&gt;execute();
}