Here is a link for certain questions on exactly how to post images,links and other features on this message board. http://pear.php.net/pepr/pepr-bbcode-help.php
If you're trying to post an image, you will need to "host" it some where and exactly how to do that is on that link above.
A few sites that you can host pictures,so you can post them to the boards are: http://photobucket.com/http://www.imagehost.org/http://www.imagedump.com/http://www.flickr.com/
If you cant get it from there, email me or private message me on the board and I can also upload it somewhere so you can post it.