If you have extra time this summer, you could check out Cody and LeRee at Royaltine. They offer a couple long weekender packing clinics, just show up and learn on their stock in western MT. They've been teaching packing for nearly 30 years and know how to teach it. I worked for them for 5 summers helping teach the guide/packing school many years ago, and they are great people. .. They also have a online download DVD you could buy just to start getting the hang of it that goes through all sorts of hitches, backcountry stock techniques etc.;
www.royaltine.com
They mainly teach Decker style, cause thats whats used most in ID and MT, but also go over sawbucks as well. Sawbuck is much easier for a new packer to be able to use, and Outfitters supply has the not-a-knot system that works great with their bear boxes and a top pack if you dont know how to throw a diamond or box hitch. . I always throw a hitch on mine just cause its quick and I know how, but its not necessary.