Help find a script will pay

Hello,
Could you please help me locate the script or something similar powering this site:
boostersite.com
This directory gives users a possibility to rate websites and rank them by popularity.
simply clic on a site to understand:
valerie.boostersite.com
There's a bar on top to rate etc...
Thank you again for your help.

Have you tried just going to the page and right clicking and looking thro the source code???????