I didn't enter my email address when I finally got in; however, I did enter it when I first tried to log in. I'm assuming that since one of the pre-screening tests was whether or not cookies were enabled, there must have been a cookie in my registry that let Disney know that I had gotten as far as logging in the first time. I guess I'll only know for sure if/when my litho shows up.
I did log in once as well - hopefully that's the case and we'll get our litho!