Jafa,
The original developer of Amber: Journey's Beyond is a personal friend of mine. We have been talking about your install, but since I have the original 2 disk version of the game, which is prior to the launched single CD version, I get an error that it cannot find the volume for A:JB mounted. Speaking with him, he tried to remember the single CD volume name so I could make an ISO and attempt a launch of the game, with little success. Can you recall from your install code, what volume name your installer is looking for?
If I have that, I'm pretty sure I can get a good launch and running. I'm trying to talk him into going up into the attic (which is haunted) at his house and digging out the original code to look. But in the meantime, can you recall the volume name?