You need to store the picture file somewhere on the Internet, where this site can reach it. I store mine on my ISP, where I store my home-page files. There are also some services that store photos, but I can't think of a name offhand.
Once you have the pic stored out on the 'Net, you put it in your message with image tags and the URL where your picture is stored.
For example, I have a revolver picture stored with my website data; the URL is
so I will enter
, and the picture should appear.
If God didn't want us to own guns, why did He make the 1911?