Some of the links on this forum allow SMF, at no cost to you, to earn a small commission when you click through and make a purchase. Let me know if you have any questions about this.
If you mean you want to post pictures in this forum, you would download the pic from your camera to your hard drive, then you would click the "Add an attachment" button you see below the text box when posting a message.
Then you would select the pic on your hard drive and upload to this site.