OP-et-al, if it was me, I think first I would search in YouTube for anything FS-98 related. Next, fly away simulation has a forum for older FS programs, not sure it FS-98 is among them, but even if you only get FS-2000/4 people, they most likely can answer your query.
I understand your Delima, I remember this Christmas Album my friends parents had, and it’s driving me nuts to find it again. I know I remember the artists on it, but in searching for that, song/artist, nope, the internet does not give him credit for that song, but I know it was him. Old age is heck on memory.