A picture paints a thousand words right? 
The first thing a potential buyer is going to do is request photos so always try to post photos when your selling.
Here's how for a new thread -
Click on manage attachments (Attach files see down below)
A window will popup so then you can simply "browse" your computer for the images and add them.
Then you simply hit the upload button and your done!
If you want the upload images to an existing thread the steps are the same but you need to click on
"go advanced" to get the process started.
