Unfortunately, this webserver doesn't support PHP5, which is necessary to run the code of this script.
I've already talked to my webhost and my account should be moved to another server soon. When that happens i'll include an online example here.
The zipfile which you can download contains a folder with examples though.

In the meantime, you could also try the example page of the old (php4) version. Although this version has much more features, it should give you an idea what it can do

To give you an idea though, here is the source of the most basic example:

<?php
include "../../../InternetRadio/Shoutcast.php";
$InternetRadioStation = new InternetRadio_Shoutcast("http://basu.cockos.com:6969");
// display server information
echo $InternetRadioStation->getServerInfo();
// display track history
echo $InternetRadioStation->getHistoryInfo();
?>