Someone wrote that they had problems logging in. That was after they had registered for a membership.
I’m not sure how that happens, but the best is to check if you are logged in or not. The easiest way of doing this is to look at the upper left screen and see the "welcome" line. If it says, as for me Welcome estelle, then you’re logged in. If it does have your name you’re not logged in.
To log in just type in your userid and passwords in the fields just above that line.
Let me know if you need more help.