I started the cs50x online course a few days ago and I've just finished my Scratch program for pset0. I'd like to submit it, however I can't find pset0 in the submission interface on http://apps.cs50.edx.org/cs50x/2014/@/submit (only psets1 to 8 are available).
Am I really too late? Is there any way I can still submit my answer?