Before you can show your photos on this Forum, you will need to upload them the a photo-hosting service such as Photobucket. Once uploaded you will be able to get a 'link' to them, which will be something like http://www.photbucket.com/yourname/yourimage.jpg.
To show your photo on this Forum simply put the 'link' in between img and /img tags, e.g.
(img)http://www.photbucket.com/yourname/yourimage.jpg(/img) BUT instead of using the brackets ( and ), use [ and ].
When you Preview Message you 'should' see your photo!