Shukaku: Translations are impossible to perform on these games. They have been compiled using a compiler that doesn't exist any more and was never distributed by Sierra for people to make translations. If you want to translate, you have to use a hex editor, but it's very difficult to do it without breaking the game.
The only way translations appear is if someone takes the time to create a program that can decompile the game files and compile them again in a way that can be edited. So you'll be waiting forever for that to happen.
You can replace the files with the corresponding translated files. But yeah, it kinda brakes the menus. Each version of the game seems to be hardcoded for each language. The soundfiles works perfectly fine though as they don't need to be synced really. Nothing fancy there that needs to be rewritten.