Help! How do you change the video format on a video you have stored from Windows Movie Maker?

I have firewire and imported a video from my camcorder and saved it. I then am entering a contest and I need to upload the video to send it. (Which is why I got firewire in the first place) but when I go to browse to get the video file to upoload it, its not their, so its not in the right video file format. The page says it only accepts file formats: .mov, .avi, .mpg, .mpeg, .flv, .mp4, .qt So I guess when it was saved to Windows Movie Maker it was under another file format that it automatically has. So how can I switch the video's file format so it will appear in my browse on the contest page with a right file format so I can upload it? And can you do it with the same video you have stored on Windows Movie Maker and just change the file type or do you have re-load the video? Please help, I only have a limited amount of time left,thanks.Help! How do you change the video format on a video you have stored from Windows Movie Maker?
You would have to go into the Project or Edit the file and go File then Save Movie File, and Scroll Down the Format Menu.

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