Okay peeps, it would seem that it keeps you logged in unless you physically log out. If you look above the 'You are not logged in' box you will see your user name in very small letters. If your name is there and you try to log in, it goes to an error page. It is telling you that you are not logged in, but you are if your name is above it. You then click on 'Football Predictor and you are in. A very serious glitch on their behalf and I am trying to contact them about it.
I hope this makes sense.