You'll notice that there isn't anywhere at the bottom of a post to enable attachments e.g. pictures to be posted. The reason for this application being missing is that the facility to post pictures via the board host (smfforfree) costs money.
If'n y'all want to post pics in your posts you're gonna need a hosting site like Photobucket which is extrememly easy to use, and the beauty of it is that it costs you, the user, nada, zilch, nuttin, in other words it's free.