MegaTraveller Computer games

I have the MegaTraveller computer games The Zhodani Conspiracy and Quest for
the Ancients. Are the clue books for these still available? If not, can
someone give me some help? I'm mainly playing Ancients right now, and if I
don't get some progress made soon, I'm going to give up (in which case I will
be getting rid of them...there's a broad hint for anyone looking for them...)
                                         Allen