That van looks different to me too, but very hard to tell from that video and based solely on that one photo. The one in the video looks newer and like a different design to the one in the photo. Whether that's the van or not is probably a moot point. Even if it was I doubt the police or even insurance would do anything based solely on that video, so unless the owner admits it I'd say you're out of luck...
Is roof the same? doorhandles? wheel design? etc - video and lighting makes picking them out pretty hard... And even if they are that proves nothing other than a similar van was in your area on the night. As in the first response if you're absolutely convinced it is the same van you could potentially knock on their door and ask if they had any accidents recently - perhaps mention you have a video of it and you were just wondering before you hand it over to your insurance and police to let them analyse it. Maybe they watch too much CSI and think the police might be able to enhance and zoom onto the licence plate ;D But yeah I suspect it's a different van so I'd be careful not to make any actual accusations.