Dropdown List Automatic Populate with Image ID's & Names

So I was trying to hack some stuff together to get something to work with Contact Form 7. I want one of my drop-downs on my form to be automatically populated with a list of all the ID’s and Picture titles that are in my galleries. Its basically a form where people can request a certain template, so they can see it in the gallery, and then use the dropdown to easily select the one they want.

I found this code below which allows a shortcode for CF7:

wpcf7_add_shortcode('postdropdown', 'createbox', true);
function createbox(){
global $post;
$args = array('numberposts' => 0, 'category' => 5 );
$myposts = get_posts( $args );
$output = "<select name='cursus' id='cursus' onchange='document.getElementById(\"cursus\").value=this.value;'><option></option>";
foreach ( $myposts as $post ) : setup_postdata($post);
	$title = get_the_title();
	$output .= "<option value='$title'> $title </option>";

	endforeach;
$output .= "</select>";
return $output;
}

which populates a dropdown with post titles, but I wanted to hack it to show NGG image ID’s and Titles.

I don’t know PHP well enough to do it myself, and after lots of effort I’ve decided to come here for help. Anyone have any ideas?

http://wordpress.org/extend/plugins/nextgen-gallery/