In order to post a picture you have to host the pictures on the net.
Then use the following vb code:
[img]url of picture from host[/img]
e.g. the picture of google from the site.
http://www.google.com/intl/en/images/logo.gifnow use the script:
[img]http://www.google.com/intl/en/images/logo.gif*[/img]
*do not include the asterisk.
and presto...make sure the image file is an actual image.