I realize that this is an inconvenience for our users (especially if you've just signed up) and I assure you this is a rare occurrence. In fact our last total outage has been over a year ago.
I will update this post as the progress continues.
UPDATE 1: we are about 35% of the way through the upgrade with no major issues.
UPDATE 2: well there have been a few kinks in the update and we expect to be down for a while longer. Again we apologize and I'll give details on our changes when it's done
FINAL UPDATE: We're happy to say that LessonPix.com is back up and running. If you have any troubles, please contact us at firstname.lastname@example.org We will post an update to the blog explaining the changes that were made (and unfortunately, those yet to come) tomorrow or Monday.
Enjoy your Easter!