It sounds as though the file was not uploaded correctly.

Try uploading in Binary if it still doesn't work then revert back to the older version until other people can clarify if this is happen to them as well. If you don't have this then the link is:

http://www.youtwatonline.com/recentlyviewed-101.zip

As you can see the script is working perfect on my site so I can't really tell what is happening until I see for myself this issue.

Regards,
Mat.