I'm not exactly sure all of what you're asking, but ill try my best. Typicaly a proxy is a go between. you -us proxy - veoh, thus it appears to veoh that you're connecting from the usa.
I doubt if anyone that has a proxy here would let you use it seeing that you're a very new member

however, google is you friend. just search for proxy lists and you will find sites dedicated to listing free open proxies.
one more problem to address...bandwidth - I've tried proxing a/v content, it doesn't go over so well, its just too much data. proxies are usually designed for www, txt et cetera.
good luck