Grrrr..... Have tried a couple of things, but only partial success so far, so am still open to suggestions:
(1) Have killed the messenger by using ctrl-Y, and then respawning him via CLUAConsole:CreateCreature("naliames") but he is still just as annoying as before and will not take me to the funeral, even if my party is already in the graveyard.
(2) Went to where the funeral is supposed to be held in the graveyard, and then spawned Isaea Roenall via CLUAConsole:CreateCreature("isaea") However, although he starts to speak his text speech, the dialogue stops in the middle of a sentence and won't go further to the point where he threatens to kidnap Nalia.
(3) Am starting to encounter more game glitches, such as Bodhi and her major minions (vampires) being missing from the graveyard's underground dungeon, plus Haz never shows up, so I have to Ctrl-J to get past the magically locked door in the North leading to where Bodhi and the vampires are supposed to be.
My previous manual efforts at major modding have never caused problems like this, so I must have accidentally borked something this time. Oh, well, I may give another stab sometime with using BWS (my first two BWS attempts this spring did not work quite right.)