"incoming" is off your web root? ... and is where ProcessUploadedFile puts it? Did you look at the url in the page source? What does it look like? Does it work copying it into a browser?
Yes - that's why I can't figure out why it won't display in Firefox.
I'm actually calling the image name from the server, right?

Here's the page: Art and Graphics File Upload Form :: RL Hanson-Online