It is basically a pick ems game in which teams(message boards) compete against other teams. So Tennisopolis would compete as a team against other message boards,like MTF or british tennis and so on. If you guys are interested in competing as a team at this years AO maybe the site administrator can contact the British tennis site administrator(steven) and ask him to register us as a team so we can compete. If not the AO then maybe the next masters event or slam. Here is a link so that you can read up on it.
By the way if this post needs to be moved feel free to move it where it belongs :)