Yeah, I'm pretty sure anything in the VP folder is made by Vanishing Point. They're a third party. Not sure if this violates the TOS but here's a link to them:

http://www.vanishingpoint.biz/

As far as distributing goes, I really can't speak to that. I would think Wandw's right but you should contact our support team for an official response on this. Better to be safe ya know?