Please help! (about the loader component and external img/txt files)

Hello, my name is Lill.
Im stuck on a problem here.
Im useing the loader component to import images, but is it a way to make the loader go to and read an external txt file which then points to a external img file?
This is because of a dynamic system the programmer here uses. He wants to change the images through a dynamic web and from there he can upload images makeing changes to the external txt files, which then would change the image in the swf whithout changing the fla file.

But do you know something that would make this work?