To get the pattern, go here:
https://www.craftsy.com/sewing/patte...s-dress/115310
and add it to your cart. When you check out, you get the free pattern as a download.
There is a YouTube tutorial on making the dress here:
https://www.youtube.com/watch?v=Cj2i1-rBl70
Edit: If you have (or set up) a Craftsy account, the pattern will always be accessible to you under the accounts menu after you check out.