you really just need to leave url snooper running - it doesn't have any special batch processing (though i could add it if people wanted it).
then open each of those pages one at a time in a browser or in another program and let url snooper work in the background.
keep in mind there are some very good "spidering" programs (offline explorer, teleport pro, blackwidow,etc.) that are designed to find all the normal urls and pages on a site. url snooper is specially designed for sniffing live traffic to discover things like hidden multimedia streaming audio/video urls.