Yes, its absolutely 100% free to register/sign up.
You can play by going to the Home page. You should see 10 matches there for you to predict, make sure you predict all 10 matches to stand a chance of winning.
It means the time for playing this match has elapsed. You will have to wait to play the next, but do not worry, check back in a day a two and you're sure to find a new set of matches to predict.
This means you cannot play since that game has concluded. You should see some new games for you to play within a day a two.
You can check if you have won by going to the Winners Page. If your username appears in the table of winners then you have won. However, if there are other names there, then the prize goes to the user who played first. So its important to make sure you play as soon as new games are released
Prizes may vary from time to time. You can always find the prize for the game at the top of the Home Page
Prizes in the form of cash will be paid to the bank account you have provided. You will be contacted you within the hour of checking for the winners to verify. Failure to verify will lead to you forfeiting the prize, and it will therefore be passed to the next winner.
The player with the most points at the end of the English Premier Season will be awarded with our Special Prize which is yet to be determined.