Haven't read, but you have to do two things.
1. Use the [img]<url%20of%20image>[/img] code and it will render the image in it's place.
2. Upload it to the site and add it as an attachment.
I use option 1 because this site has had problems in the past, and many images posted have been corrupted. Option 1 is definitely the safer route. If it is on your PC, Dropbox or some other file sharing website is your friend. For Dropbox, just place the pic in the public folder and copy the link(url) and paste it in the code.
Hope this helps.
