Check out the search function on FF for more info on this type of indicator. I found all these within a few minutes.
http://www.forexfactory.com/attachme...1&d=1208149069
http://www.forexfactory.com/attachme...9&d=1208200563
http://www.forexfactory.com/attachme...7&d=1208201600
http://www.forexfactory.com/attachme...4&d=1208202151
Greetings from Guanajuato, Mexico