I don't know... looking at the pictures with someone under the quilt, it looks to me like it wouldn't be easily adaptable to charm squares. I think you would only get two triangles per charm, so each star would need 6 charms. Multiply that by 80 blocks, and you need 480 charms.
There is a Contact link on the page Gay linked. I would use it to contact the designer, just to be sure.