Cloud Kingdoms can be found on Automation compact disk 269, Flame of Finland (FOF) compact disk 16, Fuzion compact disk 5, Zuul compact disk 3 and Pompey Pirates compact disk 32.
Ooooh this is one of the better puzzle games I've played... one of the best actually ;c)
And I don't mean to brag but I actually did manage to beat this game once. :c) Wish I could remember how it finished.... but I 'think' that it involved multi-color text..... but I'm really not sure casue it's been 10 years. :c(