You can find it at http://www.brianlane.com/systemhealth.php [3] and you can see the graphs it produces at http://www.brianlane.com/~health/health/ [4]
I have released this using a new license from Dan Bricklin as an experiment to see how well an open source project using a license other than GPL is received (and to try to make a bit of money). License details are at http://www.brianlane.com/licenses.php [5], but it basically boils down to being free for non-commercial use and $10 for commercial use."