Go to your profile and on the left margin, click "Manage Photos". Then click "browse".
Before all this you must have some pics already in your "Window" browser. If you have, your files will come up on the screen. Select and click "open". The photo's encrypting code will fill the bar next to "browse".
Below this click "Upload Photo" and this will take a few seconds to upload. This will be your "Main Public Photo", the one which will appear along all your forum posts.
You can load up to 50 snapshots on your RealJock profile, of these you can select any one for Main Public.
But your pic will not be displayed until the Admin has given it their approval.
When uploading, first read what sort of pics are acceptable, and don't forget to click at the little box which reads that you are over 18 and the pic submitted is of yourself.