Don´t feel bad about it. I know Terror Engine can be a bitch sometimes. Even Compiling the Game sometimes can lead to Issues with the Scripts like these. That´s why when I used Terror Engine back in the day I always got so frustrated with it and than I just gave up everytime.
And I am such an Idiot for not backing up my Terror Engine Version, I don´t know if was the Version 2.1 you are still looking for but I did use an older Version... Sorry...I wasn´t such an Archiver back then either. Really regretted this in the long Term.