There's this other Dressup Tutorial who will be able to answer you that:
This tutorial works great, but how do I test something so I know that it works? And how do you get the outlines of the clothing to move too? Help with that, and you'll be my hero. :)
This helped me a lot. I was planning on making a dressup game, but the tutorial I used earlier didn't work. But this one is awesome! Thanks a lot.
I doubt if I make a dress-up game it'll make it onto Newgrounds, but thanks for the lessons anyway. They really helped.
At last ! i can make Dress up games!
All the other tutorials didnt work (cause they didnt say "convert to a movieclip after making it a button)
THANKS again =D