Parmenides14

Setting RH#QarTalks to 1 got him talking again.

 
I also did:
 
SetGlobal("RH#AlimExists","AR1005",1)
SetGlobal("RH#AlimTalks", "GLOBAL", 1)
CreateCreature("RH#Alim")
 
...and that got Alim talking (previously when I summoned him he had nothing to say).

The rest of the quest unfolded without any issues.

Thanks for your help, and congrats on a really nice NPC mod!

Thanks for your quick response, Rhaella.  I talked to Taren (hiding right under my nose) and he seemed to get me back on track.  Taren told me to talk to Qar Jysstev and Alim.  I've searched the prison and talked to all the guards. There's no sign of Alim though.  It's 10am in the game (if you go the the prison at night, the guard tell you that prisoners can only be visited in the morning).  When I talk to Qar, he scolds me for letting Sir Sarles get away and then tells me to get lost.  I wonder if the Sarles quest is somehow interfering with this quest.