Thank you, Funky. The link you posted advises "Click on tab "Options" in reply-frame and proceed with "Add/Update". Max. 50kB"
I've done that, but something still isn't working for me. I seem to be able to add a photo that way, but it still doesn't show up in the message. I believe I'm being dense here, so apologies. But, any advice to set me right? Thanks again!