It is all explained in the videocast that aired today at 2:00 EST. You can view it again anytime by going to www.sewingonline.sulky.com.
Sign in and access your "My Library". Click on the Wilderness event which will take you to the event page. The video is at the top of the page, and you can click on it to watch it. Before you do, you might want to download the .pdf of the event that is just underneath the video. You can pauses the video now whenever you want and resume it when you're ready.