how do I make a white area for people to create dolls in?

Don't know for a starters and, What do you mean by that?

Couldnt you use a table? I think you would also need a code for dragging images.. i think a place to look is at other creaters, and show an example, i think there is something here :

http://www.dolliecrave.com

I have already used a drag and drop cde, I just need a white area where people can create their doll

You just have to set up the page so that there's an area that's blank. A table would probably be a good way to do that, divs are another way.