What are the best resources out there to learn how to use PIOSolver?

Before I buy it, I want to know what the costs will be to learn how to use the thing. What are the best resources to learn how to use it? How much poker theory does one need to understand before it becomes useful? I'm barely beating .05/.10 Blitz poker after 25K hands. I've been studying The Grinder's Manual, so I have some sense of theory, but I need many more hours in this book to understand it completely. Would I be better off working on my theoretical knowledge now, or would a solver aid my understanding? Thanks.