ok, for the steal the key quest, the imp was dead but his chest was chock full o' decent loot. the only quests left unsolvable in my quest book are that one (quest not showing as botched), floogefrog killer (no one left alive in herder tent), and steal a box (merchants both dead).
so it looks like the game gives you the option of finishing *most* of the quests.
also, i finally got the imp hero cutscene to activate.
