A rookie's first post... and Pokertracker question

[metsmaniac823]

Hello all, new to this posting thing but I've been browsing these forums for about a month now after reading Sklansky et al. I'm constantly impressed with the analyses of different questions and I love reading sample hands and seeing all of the different reactions that result.

My question is about the Pokertracker program. First off, how do I find and purchase it? Is it software found in stores or downloaded from a website? Secondly, what level of play should I be expected to be at to justify buying this, or in other words, should there be a minimum (say $1-$2) that I should be playing right now to justify getting this? Or will it be not worth it until I'm moving up to higher limits?

If anyone can also break down Pokertracker as well, like what stats exactly it provides, that would be a help as well. I see the abbreviations in many other forums but I don't understand them all. Thanks in advance for any help.

--Robbie Dimes O(*_*)O