I downloaded the 2008 version and it works fine on xp to view flash files from youtube. If others have problems, maybe the original flv download may be suspect?? I found it a good product.

Video and Audio seem to work fine on the download that I grabbed.

I downloaded a video from Youtube and try to use this program to see the .flv video, but the program could not syncronize the video and audio of the file, so I was watching something and hearing other part of the video. Really a bad product.