The new (updated and hopefully stable) distribution of files is located at the bottom of this post.
New in this release:
1) This fix addresses a problem with the conversion of Vevo videos.
Only YouTubeToMp3Converter.class.php was updated, and only code in the DownloadVideo() and SetFlvUrls() methods was changed.
I will soon be updating the paid-for version of the app as well, and I will email an updated (free) copy to all those who have already purchased the script. (Updates will be sent to your Tradebit
email addresses only.)
As always, please let me know if you have any questions/concerns regarding the above and/or the code.