Avi help

[napster0317]

Hello all, it has been a bit since my last post on the site, but here goes nothin. I took my mustek DV520T and placed it on my glider as well as a few other members of the soaring society's planes and got some killer video. The problem is that when we look at the picture during playback it is 90 degrees to the right and needs to be turned, or rotated 90 Degrees to the left. I am currently running Ubuntu as my main OS but I have vista if need be waiting and ready for use. what software should i use to rotate the video and if free that would be awesome. i have been looking at getting Pinnacle studio 12..??