How Do I Get Xgrid running?

How do i get xgrid running on my iBook G4 for tiger. i cant find the download for 10.4 on apples website.

I think it's all done under the Sharing PrefPane. There's an option for Xgrid and you have to set it up and everything.

The agent is indeed configurable from sharing prefs.
It looks like they've changed things around since the last time I used it. The controller looks like its now built into OS X Server, whereas client, controller and agent all used to be installed and run from the same app for Panther and Jaguar.
You need the public beta installer. Or a copy of Server (I read a page reporting that you could download the Server combo update and install it using Pacifist. Worth a try.)
I'll hunt around and see if I've got the beta installer knocking about.

Found it. 3.8MB. PM me if you want it.