Leg joint technique is courtesy Dutzie, and she (the doll) also has a move-able head. You can find tutorials for both these techniques on the left sidebar of this blog, under "Tutorials by Joyce," and 'Tutorials."
I didn't like the directions for the jacket in the Sugar&Cream instructions, so I made up one as I went along. And, I knit her a sleeveless blouse, instead of crocheting the blouse on her; I've always loved dolls with remove-able clothes :-)
This is a great basic pattern to make as is, or to modify with your own special techniques. Enjoy the day, and enjoy the crochet!