i just love that quilt and have been searching for the pattern all afternoon. if you have not found it, perhaps another idea would be paper dolls. i've been searching those, too, and none are as cute as your quilt. the closest i could come is this
http://thesistersfarren.com/Books-Act_Overview.html with some pictures of the dolls here
http://thesistersfarren.com/Books-Act-PaperDolls.html