Submission procedure always worked; I hope if wasn't broken. The submission needs some attention to detail. Just a few notes:
Pay attention: there is a raw HTML and rendered modes of presentation of the code in the text input editor. You can turn HTML mode and see the URLs of images.
You can also re-visit editing of the article after you closed the session and/or get back to the image downloads. When an image is downloaded you can see its URL. You can also preview your article, use you browser to "View page source" and see what URLs are actually used. I hope after comparing this information you can put it right.
If something does not work, post your question or issue report here:
http://www.codeproject.com/Forums/1645/Site-Bugs-Suggestions.aspx[
^].
—SA