Difference is you're hosting them and it's automatically reducing the image to keep the formatting of the forum. Once you click on it you get the full-size image in a new window. I don't know if there's any way to deal with larger images that have been remote linked and have the forum protect the formatting.
Oops. Sorry. I figured you were trying to figure out the largest size that wouldn't blow the formatting. I'll hold off on posting the 1024x768 version. :lol: