In addition to great Jaesun's FRUA guide, unofficial patch 1.3 (among other changes) removes copy protection that is enabled in 1.2 in some modules (e.g. Harri Polsa's "Jade" ones).
- get 1.3c patch from rosedragon archive
- copy diff.tbl into tutorial.dsn in your FRUA directory
- start UAShell and apply tutorial.dsn
- close and exit UAShell
- delete the default.dsn directory