I don't really remember if there was even an option to change how the season scoring happens, I think by default it scores a WIN = 3 points, TIE = 1 points, LOSS = 0 points. That is the standard English Football scoring and I think it is applied here as well.
I can't remember even having the option to change that. In our leagues case, it is a round robin I think, so at the end of playing each other team twice, the team with the highest points will be seeded first to fourth, then a two round playoff (I think), and then VICTORY!