I can't help you with your question, but I came across this program the other day and thought I would share it.... it's a new take on the Kaleidocscope Block.
http://www.kaleidoscopecollections.c.../fftp_info.htm
When this company first started, they had a 30 day free download that you could create blocks with. You could use any picture to create the block, we used humans, animals, flowers, you name it. Some blocks were stunning, others looked alien....my kids and grandkids loved it!!!
It is kind of like EQ, you could scan or photograph your fabric too, and see what it is going to look like before you cut up your fabric.