Sorrow's Furnace

I started the Sorrow's Furnace quests on 2/16/6, and did Galen Trask, and the "Slaves" quests, on that day.
Did the Orozar Highstone and Kilroy Stonekin quests on 2/19, and finished the High Priest on 3/2/6, and started the "Final Assault" that same day.
Having a big problem with that quest with only henchmen!