How do i change a video format?

i have a video i made on pivot ( a stick figure movie maker thing) and i want to put the video on youtube but it doesn't support the video format please help!How do i change a video format?Try SUPER from eRightSoft, converts almost anything to almost anything else.
How do i change a video format?
you can get a free photobucket acc. and download that video as it downloads you will find 3 diff. convertions one of them would work .
How do i change a video format?
You can go to download.com to find almost any converter for free.