I just tried some stuff, and it was easier. Just copy the files from the cabal you use, ( like me i use EU so i copy the files from EU to the cabal8 files).
Here a guide:
copy Cabal.msg, cas_msg, cont_msg, help, msg, and replace them in cabal8 file.
Then in the NPC file, copy the script_msg and replace it with the on in cabal8 Dont copy the other script file there, if u do it wont start. It stops the quest crashing. i did lvl 10 quest = no crash :)
Here a guide:
copy Cabal.msg, cas_msg, cont_msg, help, msg, and replace them in cabal8 file.
Then in the NPC file, copy the script_msg and replace it with the on in cabal8 Dont copy the other script file there, if u do it wont start. It stops the quest crashing. i did lvl 10 quest = no crash :)