I was using Internet Explorer 8.0 in a Windows Vista environment.I tried again, and this time did get it to upload successfully.
The problem was a bit of confusion caused by the warning When scaled to 270 pixels wide, the height of the scaled image must be between 160 and 220 pixels high.
Accordingly, I scaled the image to 270 pixels wide and between 160 and 220 pixels high.
But another direction says: Your uploaded image must be greater than 270 pixels wide.Mmmmm.
Might be better to clarify that we are expected to try out scaling the images on our own to make sure that they fit the parameters. But that we need to upload the bigger image, and not the rescaled one that is 270 pixels wide.
Directions need to be written for curators who are easily confused, like me.
Would still like to hear more on the autosizing options, as those big blue boxes look very odd on the pages with animation.
For example:
http://sensei.rubberslug.com/gallery/inv_info.asp?ItemID=314797S
Also worth noting that boldfacing, underlining, etc. still work in the old white-on-black forum but do not seem to work in this new state-of-the-art forum, either in html markup (angle brackets) or standard message board markup (square brackets).