You can see the order that I installed everything by looking at my signature/spoiler.

The most relevant part is the following, RTW Gold > Alexander > EB 1.1 > 1.2 > Official Fixes > 1.2 Mini Mod Pack 3.1 > LZ3's Custom EB Fix Adaptation.

Just make sure all of that is installed in the same folder, except the official fixes and the adaptation fix, which go into the EB\data folder (I think). You can check by reading the install directions. Also make sure the mod pack download you get is the alex.exe one.

gl