Here's the Thangles' website that shows you on this page just what they are and how they work.
They're awsome and worth every penny.
http://www.thangles.com/howtheywork.html
About more pictures, they'll come in spurts. Everyone should be finishing up the first border by June 15.
After June 15, the second borders will be turning up.
I'm working on the second border for a block now. Actually, what I mean by "working" is not actually sewing, I have to design it and lay it out.
:-)