i need help folding guspath's butterfly

[THeNine]

this is my first attempt at folding from a cp and i need a little help collapsing the model. I think that i know how to make the head, wings, and legs. I have no idea how to make the abdomen and thorax. The final model has a texture that i cannot seem to recreate.
Here is what i have so far.
http://www.flickr.com/photos/52779604@N05/4870029556
http://www.flickr.com/photos/52779604@N ... hotostream
http://www.flickr.com/photos/52779604@N ... hotostream
i just cant seem to make the thorax work any help will be greatly appreciated. this is where i found the model.http://design.origami.free.fr/indexEN.html