I have Camstudio an even Camtasia Studio but I do not see how they can convert my VT to video.
These are screen capture programs that produce video output.
You move/play/view the VTs on screen and they get captured as video.
It's not that easy to do and you may not be happy with the results.
My feeling is that if you want video then shoot video.
Why do you want to try and display a VT as video anyway?
The only software I know of that specifically claims to be able to do this is Pano2Movie, but I've never managed to do much with it and it requires QTVR as input.http://pano2movie.com/