What script is used?

Hi,
I would like to know what script is used in
http://www.indexguy.com/index.cfm/id/1/flush/cache
Where you can have reciprocal links for free or paid one way links.
Does any one know what script is used by them?
Or is there any similar script you know that works exactly similar?
I have a client looking for a clone of that website.
Thanks.

Original post by bytestor