I thought I would pop back in and leave another reply to myself. It's getting late, and I want to make sure I can jump back into my thought process tomorrow.

I think rather than there being a problem with that flashvar, it has to be a problem with the playlist.php calling upon $video_flvdoname. I originally used that because that is how the original flashvar called up the file, but now I'm beginning to think that is wrong.

If you open view_video.tpl, you see that where the embedded code gets generated creates the file name as:

Code:
&file={$baseurl}/flvideo/{$vinfo[0].flvdoname}
So maybe I should be trying to work with $vinfo[0].flvdoname instead of using $video_flvdoname.