Lol, well iceking, if you're still interested, can't be bothered reading the previous page, or just don't get it, I'll try an explain it to you.
Most 3D programs have 4 views. Usually a Front, a Top, a Perspective (ie RL) and either a left/right. You can load a 2D image, a bitmap, into one, or more of these views, and it sits in the background. Then you can plot points on say the front view, then using the top view, you move the points forward to give it some volume. You then mess around with this until you get points that look like your image. You then use a command to solidify your points into a model. Thing is, you usually need more than just a front view of whatever it is you're modelling. So if you were to model a person's head, say, you would take a picture from the from, DIRECTLY from front, mind you, one from the left/right and one from the top.
Hopefully that explained something to you.
If not, post what you don't get, and I'll try an' clear it up for you.