Abaloop, it would have been better to have this be a new topic vs. embedding it.
However, at the top of the Message Board index, there is a FAQ section. In it, there is a sticky on posting pictures:viewtopic.php?f=34&t=16916
I find the Preview button at the bottom of your message window very helpful. You can check to see how it will look after you add the image.
Hope this helps.