Where can you find a 3.3.0 private server that doesnt require wrath of the lich king

Unfortunately if you want 3.3.0 (or 3.3.2 as of this post) WOTLK will be mandatory, as that patch number requires and is built for it. If you want only the Burning Crusade, you'd have to find a server that had the highest patch number for that expansion. Hope this helps.