is the file on your thumb drive an image/iso of the game, or all folders after extracted?
reason is, when disco installs it takes files from a full installation of vanilla freelancer, then updates them with disco files and creates a new directory, then you launch disco from THAT exe file
For Disco mod to be installed correctly, it needs the normal Freelancer to be installed first, let it install to the default folders that it makes
1. You will need the game image/iso (cd of the original freelancer), install that to default folders
2. Download the disco install
3. Run it, It will copy and install what it needs to where disco installs to, don’t change anything, just let it do its install
That’s really it
Theres no need to create folders yourself or change file names/folders, it works it all out itself