When is it going to be available? I don't want to lose any of my games.

You do not have to actively save any of your games once they are finished. This is because all games played on the new Caissa are automatically saved by the system. Simply go to "Member Services" and then "Scorebook" and they will be there.

I want to be able to download them and to put them on a single big file like I used to do on the old site. That's how I saved 500 games .

There is something to be said for downloading games in pgn format to use with viewers like Winboard. I know you can cut and paste the moves to accomplish the same thing, but the ability to download the games easily would be appreciated.