569208 Filestube clone

Hi, I need something simple script that is almost the same of the [login to view URL] style site. I need to know if it's an automatic spider or if it's people that add each content.. I know there are a big script for search engine, called "Open Search Server" that can be used from any site script.. but not much clear how it work. I want someone expert that guide me to find a clone of filestube, or build it a similar script.