Youtube and other sites changed their code.

Please use auto-updating feature to update your copy of the script.
go to http://yoursite.com/update.php and fill the required fields when you choose automatic installation

In case you have customizations, auto-updater will backup your /styles/style.css file before replace. You can restore it later.

In case you don't have current version (no auto-updater) download, extract and replace this file:
http://phppod.com/products/updates/video_search_and_download/2008-10-17.zip
into /adm/lib/search

---