Form submission results on new page

Hi,

I've checked the forums and couldn't find a solution to this. After the user submits a form, I would like the confirmation to be on a generated page, with all the submission results.

I have looked at this topic and this doesn't work for me:

http://www.gravityhelp.com/forums/topic/can-pages-be-created-from-form-submissions

I've added the following to my functions.php but it hasn't changed anything:

add_filter("gform_post_data", "change_post_type", 10, 2);
function change_post_type($post_data, $form){
    //only change post type on form id X
    if($form["id"] == 4) // You need to change your form ID here
       return $post_data;

	   // Add other page data to change
	   $post_data["post_type"] = "page";
	   $post_data["post_parent"] = 494;
    return $post_data;
}

I've tried this when using Form Settings > Confirmation > Page but this doesn't work - it just goes to the page (in my case page id 494) with no submission results.

Maybe I am missing something really simple here...