PathFinder 'HowTo' guidance
To get the Shockwave
plug-in that is required to run the simulations, click the icon below.
You'll need to follow a series of installation instructions; just do as
your told and click 'yes' whenever it asks your permission to do anything.
It's a big (1Meg) download, but you'll only need to do it once. You may
already have it installed; if you try the simulation, it will either run
OK or take you through the download process.