Since I seem to have figured out how to navigate the complex posting scheme to this challenge, and no one more qualified has yet answered:
You might have to down load the photo from the CD to your computer--not sure on that.
Next, go to the green link above that says this week's free-space gallery.
On the right hand side of the page, above the photos, it says "Upload new image"
You will get a browse button, where you can browse your files and find the photo to add. There's other stuff on there you have to fill out, too.
When you get the photo added to the page, then you copy the photo, and go back to this page, and add it here, along with your description of what's going on in it.