We purchased WPMU pro and have it installed on our sandbox site and our live site hotmomsclub.com - when I go to use smush it keeps telling me to upgrade to pro which I did. When I go into the wpmu dashboard it shows a locked photo next to it. I know the password is correct because when I use the correct one the screen just refreshes. when I use the wrong one it says it is not correct. Paying $49 a month for an app like this I should not have problems to start off with.