I have hit another bug that prevents PQ2 from being beatable. This is bug #C323. It may be related to bug #C322, which happens right before.
I have updated my ZIP of savegames to include these bugs. It can be found @ http://www.clock.org/~matt/freesci/pq2-save.zip . Bug #C321 may also prevent the game from being beatable since it is an important piece of evidence, but the game may be beatable without it. Let me know if you need any information on objects from Sierra SCI on these bugs or any of the other ones I have entered. I'll be testing CB1 next, but if this PQ2 bug gets fixed, I'll go back to that. Hope this helps! -- http://www.clock.org/~matt
