New flash user question about loading jpegs

I am new to flash mx and I’m just trying to get my head around some stuff so please bare with me, I really want to get into using flash.

Anyway I am producing a simple interactive portfolio for a construction company and I have a number of case studies with thumbnail images which I have turned into buttons. What I need to do is on release have a pop up window with a bigger image of that thumbnail. What I’m having difficulty with is that because this isn’t being published online (only on CD) where do I place the Jpegs, do they need to be in a folder on the CD or can I embed them onto a new scene within the main fla. If they are to be in a seperate folder do I then use the get url or load movie action for the button. I’m not sure I’m making sense but any ideas would be appreciated, thanks