Hi,
Video presentation on proxy recording is available in http://h30499.www3.hp.com/t5/LoadRunner-Support-Customer/Proxy-Recording-with-LoadRunner-11-52/td-p/6304007#.Uq8lmZ38L6s
You can also review the following post: http://h30499.www3.hp.com/t5/HP-LoadRunner-and-Performance/Use-Proxy-Recording-in-LoadRunner-11-52-for-Mobile-Applications/ba-p/6152483
Kind regards,