Yeah it was fruitful, I found both lines you specified. But I always get the French Revolution conversation whether I overhear the dining room scene or not. I also found that the problem with playing the BIK files is not in the files, but in the game: it even wouldn't play the 3-10AM wake up vid if I had deleted it from the data folder and played with CD-Rom.
Fresh game scripts: KQ4, LSL2 and LSL3! Check the Script Party topic in the Bard's Forum! Skip to new scripts