Round 3 has just been completed, with Qatar qualifying as a runner up.
Round 4 consists of two groups of five teams. Each team plays the others in its group twice.
The winner and runner-up of each group goes to the World Cup in 2010.
The two 3rd placed teams play each other home and away, and the winner then has to play the top team from the Oceania qualifying group. The winner of that goes to the World Cup in 2010.
This document details the qualification process; http://www.fifa.com/mm/document/tournament/competition/2010_fwc_qualific...
To summarise what happens next;
Round 3 has just been completed, with Qatar qualifying as a runner up.
Round 4 consists of two groups of five teams. Each team plays the others in its group twice.
The winner and runner-up of each group goes to the World Cup in 2010.
The two 3rd placed teams play each other home and away, and the winner then has to play the top team from the Oceania qualifying group. The winner of that goes to the World Cup in 2010.