Tourneys

I have a couple of questions about tourneys. I am currently entered in the 2005 Ladies Open, and I was wondering:
a) How many rounds will there be?
b) What percentage of games do you have to win to progress to the next round?

a) is determined by how many people get through each round

b) is determined by points for win/loss in the group, not by percentage.

Generally only the first person in each group gets through to another round. If people are tied for first place in a group, they will go through.

Have a look at some finished tournaments and you will see how it works.