Oh yeah, meant to tell you this too - there are scuppers on the splashwell on each side of the motor. They are the flaps and they let alotta water in the splashwell when sitting still. That bugs me too, so I'm thinking of replacing those with something that doesn't let water in.
Here's a shot and you can see the scuppers in the splashwell. The scuppers for the deck come out on the sides of the boat.
This pic was taken when the old 150 was on the boat:
