When you press (Start new game) under "My home - Online Chess" you will see a place for your game name, i.e. what you want to name your game, and a box for your opponent's name. Below is an option: (Show more advanced options). More options will appear. Under "Game type", change that to Chess 960 before you request that open seek.
Good luck!
JOH
i'm trying to play chess 960 but when i click on icon the open window go on my normal online home games...help me please