If i could still remember it correctly, once you have seen the team aqua in the Shipyard, go to the oceanic museum; the building just right above the shipyard. try to check it out and reply to me if i am right. thanks :)
Go and talk to a guy in sterns ship yard then team aqua goes in the museum. Go there yourself, and go upstairs and talk to a guy with glasses. This is stern.
when you are goin to deliver the Devon goods go to the oceanic museum if there are still team aqua lining up outside go to stern's shipyard and talk to dock near a blueprint of a ship then go back to...