We have a website hosted on an Apache server. (I am completely unfamiliar with the Apache platform, my experience is in IIS)
Our marketing department wants to publish a URL, www.site.com/directory
and they want it to automatically pull up www.site.com/directory/testfile.html
In IIS, I'd just set the default document for that directory to the desired file.
I have no idea how to do this in Apache.