Tim,
There are 4 frames made from scrap timber. These are used to sit the panels in while they are wired together. The frames are not the shape of the hull but they are designed to make sure the panels join at the correct angle for the intended shape which is formed later when the bulkheads and subdeck are added.
It looks very box like right now but hopefully that will change.
It is stitch and glue like building a kayak.I think the photos you are asking about are in the catsailor photo albumn
and the link below should take you there.
http://www.catsailor.com/gallery/index.php?cat=10302

Let me know if they don't cover what you want to see.
***
The fires are bad news.
The people of NSW and Vic are all hoping for rain. Victoria is in flames and will be for weeks- already it is the worst natural disaster in the countries history in Victoria.

On the other hand the people in Queensland want the rain to stop- with record 12 metres of flood waters in places.

Regards,
Phill

I know that the voices in my head aint real,
but they have some pretty good ideas.
There is no such thing as a quick fix and I've never had free lunch!