Dynamically add images

Hi,
I have to make a flash movie that will have images fading in/out 2 at a time. And my user wants that when he would like new images to display, he should be able to add the images without going in the fla file. I have thought of this:
either he will add the new images in a folder and then flash will pick it up.
Or,
there will be a text file where he will specify the path of the images, and then the flash movie i.e. the swf will get updated.
How to do this?

U can view the flash I have made at :
[COLOR=#660000]http://www.qdelo.com/indexplayW.htm[/COLOR]
I am talking about the client swf that is on the right hand side. At this moment I have all the 6 images, but what if the user needs to add 3 more. He won’t like coming to me every time. Also the fade in/out effect will remain the same. I have a way to do this job but it has a prev and back btn and the user will have to click the btn to see the next img but here two imgs will fade in/out and the movie will loop, no play again. Also there should not be a text box in which one will have to write in the name of the image to load it. It should be exactly as it is on the page I have given the link to.
Pls help me.