In order to make it easy to play around with replication, I threw together a little package with scripts that are available from the tutorial page at the forge. With this script, you can run several servers from a replication tutorial directory without interfering with existing installations of the server that you might have installed on your machine. In order to use this package, you need to download a binary distribution of the server without any installers, the replication tutorial package, and unpack them in the same directory.
It is, however, not necessary to download the package to be able to attend the tutorial, but it gives you an option to experiment with replication.