I am sorry b'cause i think that link was not working.
Here are the new links.
http://www.youtube.com/watch?v=ivbdTZ-UPds
http://www.youtube.com/watch?v=1TvaEZ52Jyk
http://www.youtube.com/watch?v=HOYCHjrx830
http://www.youtube.com/watch?v=7AiKGOxqCGI
http://www.youtube.com/watch?v=2HbgBBGZSrA
http://www.youtube.com/watch?v=mQdXAbMeV2k
http://www.youtube.com/watch?v=MOwRPpD6ZpQ
http://www.youtube.com/watch?v=mD64CyFpm48
http://www.youtube.com/watch?v=cQOIyVfnhw0
http://www.youtube.com/watch?v=tuvFNQ4Wnro
http://www.youtube.com/watch?v=60qb6N6XodQ