I'm probably not the best person to explain this, but if I get it wrong I'm sure somebody will come along and set me straight.
A dynamic page (which is what I believe your script generates) is generated "on the fly" based on input from the surfer and you get URLs like this
http://www.naughtienymphz.com/nnsexl...aycat&catid=35, there isn't actually a "physical" page there. A static page has an .htm, .html or .shtml extension and it's easier for the spiders to index them. Clear as mud? Probably not, but that's the gist of it.
