If the script is not doing it for you, and you need something now, then maybe the following will be adequate:
http://macupdate.com/info.php/id/167...-docs-timeline
Btw, I have no idea how good that software is - I saw it on the MacUpdate Promo page a few weeks ago, but didn't download it as I don't need the functionality.
Also:
http://macupdate.com/info.php/id/23455/temporis
Again, I have no experience using it.