what does it do? If we cant tell you where it is from, im sure we may be able to find an alternative
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Hee're a link to smartsearch site http://www.smarterscripts.com/smartsearch/
This is a PPC search engines that can use XML feeds.
There are a lot of solutions similar with this, written in PHP. All you have to do is some research
But if you need something for your memebr area than I can help you with a PHP script. Just PM and tell me what you need