First to ease your mind. Android is linux. TWRP or Team Win Recovery Project, is your recovery window. from here you can do root admin commands. Basically like being in your windows bios. just with more power. Setup your rom thats on your sdcard using the installOk, I think I can manage the noobest and hopefully simplest question in this and many other threads, here goes:
I followed the instructions here and ran CASUAL:
http://forum.xda-developers.com/showthread.php?t=2272066
and as far as I can tell it worked fine. The PC console said basically "alright, you're done!"
I went through the 20 pages of that thread and the 4 pages of this thread but can't find an answer because I think nobody's as dumb as I am and has asked this yet:
All I wanted was to root the phone. Did I install the wrong thing? I'm on a screen that says Team Win Recovery Project and I have no idea what that is for, or what to press. I feel dumb. I'm a technical person normally, I work with a tech company, program in multiple languages, and use linux with some regularity but I don't know much about phone firmware and just don't want to press a wrong button and stop a $700 piece of hardware from working :\
What do I do from here please.
it's all pretty much self explanatory. I won't bore you with details sense your a fellow dba .