I love the idea of this plugin, but it's not working reliably for me. I've determined that after I drag-and-drop then Click to Order Pages, the plugin does in fact update the Order field on all my pages -- however, when I reload the website, the displayed menu order does not change!
Here's the strangest part: In order to update the displayed menu order on the website, I have to reload my Plugins page in the admin account! I've tried it several times to confirm, and I am sure of it. This means My Page Order can only be used successfully by the admin account, even though it is available to accounts with lesser privileges.
I will have to deactivate this plugin until this problem has been fixed.