Actually, there is a problem. I noticed that on some of your videos, it works and on others, it does not. The problem is due to unescaped titles. Some of your titles have quotes in them, which would cause problems with the viewer not showing all of your related videos. I have updated the playlist_xml.php file to fix this issue.

Also, while I was at it, I fixed the "()" thing at the end of your titles. They were originally there to show the video's duration. However, there was an error in that code. It will now show your video's duration correctly.