It's really simple with a free Photobucket account. Upload your digital pick to their site, copy IMG “address” and paste it here.
and viola, you’ve shared your picture on the forum.
If you use your own or another website to host your picture you must put the URL of that picture between the tag [ IMG ] & [ /IMG ] without any spaces. It looks like this with spaces
[ IMG ]http://www.scaleplanes.homestead.com/files/DCP02826.JPG [ /IMG ]
And without the spaces you get this.
It is explained better here
http://www.finescale.com/fsm/community/forum/topic.asp?page=1&TOPIC_ID=4462
Hope this helps.