Reload this Page One missing sript we desperatly need

We have built a web site with search engine, bulletin board, email form etc.
We can not find a script that will allow us to use categories and hyperlink them to the html page titles in a directory.
We have a category called “Machines”.
When a visitor clicks on “Machines” we want to return a list of the page titles in the directory “machines” and have them hyperlinked to the html files in the “machines” directory.

Can anyone help us?
Is it possible to modify a search script to do this?

We are presently using an index creator and a text replacer which is a slow and clumsy way to do it.