Adam,

      I am using version 5.2.  I cannot reproduce the problem on your example page.  I included a screen shot with this post so that you could see what I am talking about.  The width and height are zero when I first upload this image, as you see in the first screen
















































If I upload the same image again, the width and height appear as normal.  I checked my security configuration files and found that the image gallery file path was still pointing to upload.  I changed that to point to my image directory but that had no effect.  Hope this helps