I learned online, as did my good friend Lance. He showed me this website:

http://users.tinyonline.co.uk/chegc/kiltsite/kilt.htm

He seemed to get the hang of it right away, while I had a bit of trial & error going on with my first few attempts. I always get new tips from Lance, and I've done a few experiments of my own, so the kilts I make now aren't quite the same as the ones on that website. It's a great place to start though.