Reading the help topics pokertracker supplies are normally sufficient enough to figure out what to do. Depending on what site you use, import some hand histories (can be looked up in help topics) and start getting used to the stat charts. I think you need to be a little more specific with what exactly you want to know, but like I said, start with the faq's and help tutorials and if you have any further questions, there is a forum dedicated completely to poker tools. This is not that forum.