Fo the people who have the "Too many people have downloaded this file" problem.
There is no fix.
It's simply a lot of ponies want to download the game.
For the people with the
Item Atlas: Done"
Problem, log out and log back in without selecting "Save Pass".
If that doesn't work, completely exit the game and re-enter as an administrator.
But still don't use the "Save Pass", it's glitchy.