Alright, I had python previously installed. I ran the file, and had the latest version of minecraft, however I have never understood the .jar file, nor have I been successful in finding it. I was not aware that minecraft had to be running, but i ran the .py script by itself. The "onscreen instructions" look like a jumbled mess of codes and awkward phrases that lack any sense of grammar or syntax. I will try and decipher the meaning of this, but I can't seem to assure myself, give or take an online community. Moving on, once i follow the "instructions," I should be playing on my original minecraft file, correct? Will it be in the MCNostalgia2.1.2 folder? While you (hopefully) give more orders, I will try to work more, as I just finished my science paper(s) on transpiration.
EDIT: Yes, yes it is tene. Yes it is.