XML Images not showing on certain machines, whats wrong?

Here is a project I am working on (at the moment everythings just temp content) using a modified version of the slideshow gallery tutorial here on kirupa:
http://www.crossrealms.net/work/timeline/

It works fine on my computer and also at my office. I’m using the SWFObject workaround for that new tricky IE update that deactivates active content by default. Although admittedly I’m still trying to figure out SWFObject fully so I’m wondering if I set it all up wrong.

My client’s machine and others they know, couldn’t display it at all. It would state that they didn’t have Flash Player although I installed it. So I tried some other iepupdate solutions (the one officially released by Microsoft etc.) and got it to at least display everything (including the XML imported text) except the images which are in a separate folder and are put in using an XML file to refer to them as in the tutorial.
I’m not sure if it’s the new ieupdate that’s making it go like this or something else.

Does anyone know what could be wrong? I tried as many ways of embedding it as I could find but none worked on their machine and I can’t figure out why. I’d really appreciate any help.

And if you have a computer with Windows fully updated etc. I’d appreciate it if you could tell me if it’s working for you… and anyone else for that matter.