I'm glad that helped. Yeah, the diagram kind of came out screwy. The pins would be there to make sure you didn't scrunch too much, or not enough, so it's more even. The more pics you put in the more even in will be, it depeneds on how long the pieces are though. Do what sits right with you.
This might help, but I'd only use it on lighter fabrics. Maybe wont help for this current project, but just handy to know. I scanned it out of a really ancient textbook from a second hand book shop, there was no copyright on it so I figure it'll be OK? That method might be a little outdated though, maybe it would be used just for "smocking"? Well, that's what Mum suggested, I don't even know what smocking is?!?!