Yes, the little green blocks under your name are reputation points. You get them from other members who add to your rep by pressing a button under your name. You can get good or bad rep. Bad rep looks like red blocks instead of green. If you look under my name, I have a black block. This means that I shut off my reputation so no one can give any good or bad rep to me unless I turn it back on.
And yes, questions like these are best kept to PMs. ^^; Also, check the FAQ, it has a lot of info that can answer a bunch of your questions.
*closes*
~Kelsey