I hadn't heard anything about the journal :-\.
I've been using "GetJournalEntry" to prohibit pc's from entering quest areas and the like, but up to this point hadn't considered using nwnx4 to keep track of quests that weren't one-time deals. I planned on numerous quests being repeatable, that way people don't have to start out with a group of new characters to advance in levels.
anyways, i'll have to look into this journal buisness. It may be a little while though, I'm currently trying to get the modified bardsongs to work in game, instead of their current persistent auras.