Too many messages to read each and every one.
My report, I installed into Windows 8.1, FSX-SE, CD version of Pacific Northwest and Northern Rockies, new downloaded versions of Central Rockies, Northern California, Pacific Fjords, Southern Alaska, Global, Vector, and the following Airports, PAKN, PAJN, PAGA, and PAYA.
I do get the DLL errors, but all my lights, trees and everything else is working. In DX9. I haven't loaded up DX10 yet.
On a side note, I have Aerosoft Anchorage X, Fairbanks X, Dutch Harbor, and GSX working. I have the new FSUIPC in and I can use external programs like FSEconomy and FSInn. I don't see any reason to use the boxed edition anymore, being I have all the software working fine. I also have Saitek hardware, and with their drivers, all that works too.
So, I hope that this report helps. If your installing on a computer that had FSX boxed, you might consider formatting your drive, reinstalling Windows, and then install clean. I tried to uninstall FSX boxed from Windows 7 and it didn't uninstall all the registry stuff, making it not want to install the FSX-SE and add-ons easy.