All right... I'm quite embarrassed to have to be asking this question, because I'm pretty sure it's something really stupid and simple that I've missed.
I have a legitimate 2012 re-release, fresh-installed, bootleg040, and and "Tifa's Package"; running Windows 7 64-bit, firewalls and anti-virus are off, and, ostensibly, running bfe and bootleg.exe as an administrator. There is no red on the Mod List, and I should be good to go.
However, when I try to run bootleg, it tells me that bootleg.exe is not running as an administrator, which it most definitely is. My installation tab matches the tutorial exactly, bootleg.exe is ABSOLUTELY in "run as administrator" mode, so I don't know what the problem is.
Final Fantasy VII 2012 ReRelease Installation Located:
"C:/Games/FF7/"
Access Denied! Installation Aborted!!
Run Bootleg.exe with Administrator Privilidges.
Right Click on Bootleg.exe and in the context menu:
etc, etc
I have to laugh at myself, because it totally looks like I'm just not running as admin, but I promise that I am.