Newbie: Running Animated Counter 1.1

First attempt at PHP. I'm using Dreamweaver MX for web design. I want to incorporate some PHP scripts into my site, but I'm not sure how to get started and can't seem to find a "how to" of sorts. I thought starting with a counter would be simple. My host supports PHP4, but is there an application I need to download in order to use the scrip I've downloaded? Very confused

Sorry... not a programmer

If there's a website or tutorial you can point me to, I'd be very appreciative!