Sorry to be a massive pain and ask for help again, I won't keep this up, but I've been trying for quite a while now.
When trying to install a mod like a custom UI, I follow the instructions listed on the page, most of the time it's always:
Put the .zip file in the Data folder
open the CFG file
type data/modnamehere and save
Every time I do this, I get an error message saying "datafile/modnamehere" not found. Run Updater.exe."
The game runs fine, but the UI isn't there.
This is what my data folder looks like. I'm assuming this is normal because I tried extracting the folders and removing the .zip archives and it wouldn't run at all.
If I've posted this in the wrong place, I'm sorry.
This is before I put any mod /zips into it, obviously.
Have I totally mis-understood something or have I just messed up?