Yes, it is. The adventure is short 15170 gp worth of various things. 20,400 gp worth of magic items (it's missing two level 9s and one each of level 11 and 13, but has one additional item of both 12th and 5th level), and 2,350 gp of monetary treasure are missing. There's 7,580 gp in rituals and what not, but I wasn't sure where those fit under, so I just subtracted it from the total.
My calculation assumes that the players are only getting the parcels for levels 7, 8, and 9. Experience wise, however, they get about halfway through level 10 as well, so theoretically some of the level ten parcels should be in the adventure. This moves the numbers further into the red.
For my group I added a level 12 (worth 13,000 gp) item and about 2000 gp.
Any suggestions on where to put all this stuff?
I like to hand them to the bad guys, preferably elites (and the dragon, sure). My players still religiously check every corpse for loot, so I can sprinkle things in and also make some of the rooms a little more interesting.
It's also neat flavor-wise to describe the bad guys using those items.