How many progress to the next round?


I've been playing in a tourney with a 6(1)>3 format. Now in the fourth round, my group has only four players..4(1)>?, so how many players progress to the next round, one or two ? The two other groups have five players each. This is the tournament...http://www.chess.com/tournament/when-will-the-registration-close
The site policy is maximum 50% plus ties. Only two plus ties will advance from each group.
By the way, there is a bug in the tournament logic so the maximum group size will be changed to five. If the next round has six players it will two groups of three not one group of six.