How do I change the format of video I made?

I made it using Sony Vegas Pro 8 and I can't figure out how to reformat it to g onto youtube or my iPod any programs that reformat? Is there a way to do it in sony vegas? Help plz!How do I change the format of video I made?
well there is a way to save it in the correct format



read the instructions

(or the help)How do I change the format of video I made?
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