If you research this, you find it's a common problem and you use tools to flip or convert the video.
Look up HANDBRAKE.
I have several videos that I took with my Palm Pre. When I uploaded them to my PC they came out upsidedown and there doesn't appear to be any (visible) way to turn them around on my Vista 64 bit HP Pavilion computer to view them in Windows Media Player. I am hoping to get some suggestions on how to resolve this