That thread is way too big to find anything. Are the guides on the wiki (https://tachyongame.miraheze.org/wiki/Guides/Add_new_Ship, https://tachyongame.miraheze.org/wiki/Guides/GenShips) still valid?
You don't need to read the whole thread.
The links to all the tutorials are on the first post.
Not sure about the tutorials on the wiki though.
I think someone recently updated them.