Don't bother with the market profile add on, it currently doesn't work correctly, and you don't need it. Use the EFS formula from esignals forum and open the formula with the editor and read the comments for the settings.
Learning how to use market profile is a steep learning curve, but IMHO, very useful. Mind Over Markets by Dalton is good for this. And here is a link http://www.cbot.com/cbot/www/page/0,1398,13+287+499,00.html to a pdf mp handbook, also good.
