Flash MX - Load picture from an external file

Hello to everybody,

I have already create an interactive CD-Rom in Flash MX. I would like to link a button with a picture from an external file, so when someone navigate it have the choice, when click on the button to save (download) the picture directly into the hard disk. Can anyone know how I do it?

This is my email: tsiktsik@hotmail.com

Thank you very much,
tsiktsik