I got this to work to the point of showing the thumbnail, by going to Users and turning off the so-called rich visual editor that was eating the code.
But if you click on the thumbnail, it returns an error page, even though the script is in the exact place where the error message says it isn't. The code for the full sized image is being corrrupted and I can't figure out how to stop that.
Does any one know how to fix this so the larger image shows?
Another issue, same place, what code should I add to force 5 pixels of vertical and horizontal padding around the thmbnail and have the text word-wrap?