Scott, I've been reading Tales from the Rusty Dragon with great interest. My party just got through the skill challenges and is about to enter the Glassworks. I see you haven't posted since Aug 9, though. Have you abandoned the campaign?
I changed the Goblin in the Closet to be a Bugbear Strangler, since it seemed very Stranglery in its conduct. But I changed around a lot of things. I had two "prequel" encounters before the campaign itself started because I had 2 players who couldn't join until mid-August, but I wanted to start out the other players and get in some experience myself before then. So I had a group of goblins attack an inn, and then I fleshed out Goblin in the Closet and had the creature (and his Goblin Minion, er, minions) terrify the hapless village of Ambridge that they were passing through.
I had my own skill challenges which I won't post, because I have the entire campaign set in a fantasy 12th century Dartmoor rather than Paizo's campaign world. Nothing against the fine work Paizo has done with its campaign world, it's just that I had the world in my mind already, just no adventures for it.