Hello - I have spacequest 1 to 4 as WHDLoad games (i.e games that were disk based to start off with but have been laterly turned into games which can be played from the amiga hard drive with the use of the WHDLoad tool). Needless to say that this requires a Hard Drive in your amiga to work. I also have the ADF of SQ2 and can talk you through using the adf2disk software. give me a shout if you want me to help out.
cheers