EpicSim,
you downloaded the super pack that is a update to the ocean star. To play it you will need to buy the ocean star, they have removed it from the shipyard now so you will have to buy Ship sim new horizions to get it, included in that is a few other ships aswell. I strongly suggest it.
The free things in the shipyard are the superpacks, they were created by Terry and the gang at the creators forum. just downloading the super packs won't allow you access to the ships.
hope that helps,
Ralphy