1. Process the image to reduce it to a size of less than 614k. I find a width of 850 pixels works well.
2. Create your topic on the forum. (new topic or reply to an existing topic)
3. Click 'attach file' and select the file on your computer, then press the 'attach' button.
4. Complete the text of your topic.
5. If you want your image to be at the end of the text you are finished simply post your topic, if you wish to embed your photo place the cursor in the text and press the 'create link in message' button (as was done to post the image below).
6. Complete your topic and post.
Note: You can attach both JPEG and PDF files, and are limited to 3 images per message.