Check out Andrea's skirt! It looks awesome! And by the way, she didn't just put in the flanges (her physics terminology for the flaps!) but she also made the skirt herself! Way to go! She also noticed the pattern seems a little long for the zipper, so depending how far your zipper pull dangles, you may wish to adjust hem length. You can see her post about the sewing process at http://aem-physicsgirl.blogspot.ca/2013/09/in-which-physicsgirl-crashes-reunion.html.
Thanks, Andrea!