1. Put your photo online with www.imageshack.us or www.photobucket.com, or a similar photo sharing service. It is very easy to upload images to these sites.
2. If there is an option to resize the photo for message boards, choose that option. Remember, if the photo is too large, it will not look good.
3. Place the image's URL in your post. For example, for imageshack you choose one of the code choices for forums:
Code: Select all
[URL=http://imageshack.us][IMG]http://img152.imageshack.us/img152/5717/bracediconhead3ne.jpg[/IMG][/URL]

I hope that explains it. If anyone has anything to add, please feel free.