Offsetting

I'm slightly stuck. I've been using a program called Kayak Foundry to design
La Voie Bleue and I've got a design I think I'm happy with. I want to start
using a different design package though called Freeship. Kayak Foundry is
excellent and to me more intuitive, but Freeship lets you visualise the boat
in three dimensions and from there you can export to all sorts of rendering
packages - great for graphics.

BUT, I can't for the life of me work out how to get from one to the other.
I'm sure the answer's staring me in the face. I've posted on the Boat Design
forum about it. Hopefully someone there will point me in the right
direction, for now though, I'll have to make do with the 2D image I've
photoshopped up.