$images =& get_children( 'post_type=attachment&post_mime_type=image&post_parent=' . $postID );
$attachment_id = $images[0]->ID;

$images =& get_children( 'post_type=attachment&post_mime_type=image&post_parent=' . $postID );
$attachment_id = $images[0]->ID;

$attachments = get_children( array(
                'post_parent'    => get_the_ID(),
                'post_type'      => 'attachment',
                'numberposts'    => 1, // show all -1
                'post_status'    => 'inherit',
                'post_mime_type' => 'image',
                'order'          => 'ASC',
                'orderby'        => 'menu_order ASC'
                ) );
foreach ( $attachments as $attachment_id => $attachment ) {
    echo wp_get_attachment_image( $attachment_id );
}