I had the same problems when I first started playing with it... here's THE best advise you'll hear to get you started: DO NOT start moving the green dots around right away. See those little buttons to the left of the front/side view images? Use those to scale, poistion and orient the outline first. Doing this will leave the green dots (and the red lines) in basically the right shape/position... if you just start dragging the green dots around first, you'll likely get them way out of whack. Once you have the outline pretty close, you can fine-tune using the green dots. I screwed around with the green dots for over an hour and ended up with a mess... then I found those buttons on the left and had a pretty decent mapping in about 2 minutes.

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