Ok so you need to test the file path to the image then. You're not far from it, you've got it printing the file path into your html so now you just need to figure out whats wrong with the final path in the html.
You can copy it out and add it onto the url in the browser bar - thats one way of testing it.
My helpful sig is on vacation trying to loose some weight. It got a bit fat and caused a few problems but it will be back at some point!