There are two ways to add pictures to your post.
Pictures can be uploaded to your post:
Below the box you type in, on the left, you'll see two tabs. Click the one that says "upload attachment".
Click the browse button to find the picture on your computer and click it, then click "open". (or can just double click the image)
Pictures can be added to your post by using one of the free image hosting sites on the web.
-You simply upload a picture from your computer to their website.
-They will give you several lines of code. Copy the line of code that
references Forums or Message Boards.
-Paste that line of code into your post in the forum. (preview your post to see it)
Here are a few of the most popular ones or you can search for 'free image hosting' for more choices.