In the first mission "Tribute" you're to accumulate and transport a large number of goods to the Trojans. I've got the industry set up, the harbours and ships to transport and the goods to transport. I don't have enough space though to transport the goods to in terms of space in the storage pits available. Could someone that has played this and completed it let me know if I'm supposed to take over portions of Trojan territory and build more storage pits to transport the goods to or if there's something else I ought to be doing.

Thanks in advance.