How to Reindex External Hard drive for search

A few years ago I installed a program called "Clone Eject" on my mac book pro, this program runs a simple apple script after you drag and drop a hard drive onto its Application icon.

I now want to reindex that hard drive so I can search it, but cannot find any information online as to how to undo what Clone eject has done

here is the download site for the program:

http://www.macupdate.com/app/mac/25639/cloneeject

I cannot find any info on the site as to how to make changes and the application its self does not have any preferences pane or help dialog...I'd even be happy with a read me

Anybody?