Every Space Quest page has to have hints to be a good Space Quest page!  Here they are.

Space Quest 1: The Sarien Encounter EGA

Space Quest 1: The Sarien Encounter VGA

Space Quest 2: Vohaul's Revenge

Space Quest 3: The Pirates of Pestulon

Space Quest 4:  Roger Wilco & the Time Rippers

Space Quest 5: The Next Mutation

Space Quest 6: The Spinal Frontier

These should solve all your problems.  You (might) need Wordpad to view these. I recommend you save them.