minuro

Sry, but I have fix it my self, hope that will help others too.
What I modify is down.

//create the new post
$new_post = array(
‘menu_order’ => $post->menu_order,
‘comment_status’ => $post->comment_status,
‘ping_status’ => $post->ping_status,
‘post_author’ => $new_author->ID,
‘post_content’ => $post->post_content,
‘post_excerpt’ => $post->post_excerpt,
‘post_mime_type’ => $post->mime_type,
‘post_parent’ => $post->ID,
‘post_password’ => $post->post_password,
‘post_status’ => self::$TAO_PUBLISH_STATUS,
‘post_title’ => $post->post_title,
‘post_type’ => $post->post_type,
‘post_date’ => $post->post_date,
);

And here:
$post->post_date = $orig->post_date; //we need this to get wp to recognize this as a newly updated post
$post->post_date_gmt = get_gmt_from_date( $post_date );