Take this as a few words of advice from someone who has been through all of this. It's not gospel, but it's a method and attitude that works for me in getting what I need.
Setup of Astrotortilla can be down-right confusing. Hopefully this will help you to setup this incredibly useful tool with a funny name.
There are a lot of bits and pieces of information out there that you have to piece together yourself to figure out how all of this stuff works together. As soon as you figure out how one piece works, there's another piece of the puzzle. Hopefully I can put this into perspective and outline all the pieces.