i mean its basically like drawing it on paper, only you can get alot more technical, i drew up my box on autocad L97 and it looked pretty proffesional, but as for help man, its pretty hard to explain all the functions and stuff, i mean i took 2 yrs of HS drafting with the same software and it still took some time to figure out how to draw the size i wanted and be able to print it.
you may just be on your own with tutorials, but if this helps, u just draw lines, and trim them up, just enter in the distances you want, and just start with 1 side, then make all 4 or however many corners, its really not the easiset box making program, but if you know what your doing, it works. um i just started typing in distances, then i zoomed out to get a good window of the whole side i was drawing, then u have to go under settings, or options, and select the drawing limits....man its complicated, if you dont knwo what your doing, i would suggest tackling the learning of a new software prog. and trying to design a box, if you stay tuned, i should have pics up of mine in a little while (few days)
sorry i could really help, but its a huge program //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif