I only see a Twins Video Converter here http://www.twins-software.com/TwinsVideoToiPodZunePSP3GP/Support.php but I can't find any instructions for installing.

I've found a converter here, http://download.cnet.com/Twins-Video-to-iPod-Zune-PSP-3GP/3000-2194_4-10740150.html but that seems to be for converting videos to be used on some portable device like iPod-Zune-PSP-3GP etc. But again, no instructions there.

With that lack of guidance anywhere I would just allow installation to the default path.

Mark