http://www.dailymail.co.uk/news/article-1282096/Adventurer-Jonathan-Trappe-crosses-Channel-chair-tied-helium-balloons.html
http://www.youtube.com/watch?v=XDoix7MjLgs
http://www.youtube.com/watch?v=nq9XhvJpebA
How did he control the direction in which he was going? As far as i know hot air balloon pilots just adjust their altitude until they catch a wind in the correct direction.. How did this guy control his altitude?