nielswarncke

Hey
I had the same problem and solved it with a filter for the WP_Query object, and a filter for the links.

function alter_the_query_visitalocal( $request ) {

	if($request['pagename']=='the-slug-you-like') return array('post_type' => 'job_listing');

	return $request;
}
add_filter( 'request', 'alter_the_query_visitalocal' );

And another filter for the links:

add_filter('post_type_archive_link', 'change_url', 10, 2);
/*Change at which page you arrive if you click the search button*/
function change_url($link, $post_type){
	if($post_type=='job_listing') return str_replace("/listing-region/", "/region/", $link);
	return $link;
}

Put these into your functions.php, I hope it works