Xml and the jpgs?

Hi I have created an xml picture displayer. for some reason the jpgs stalll and dont load.
this affects the entire swf.
I have set the images as jpg’s pprogressive.
In Photoshop i cant find how to set the option to baseline “standardised” in using cs.
can any one give me a hand.

Also I am working on a mac. If this has any bearing on the issue at hand.