You can attached a photo to your ad by using the attach files box located on the new thread page.  To attach a photo create the image using a GIF, JPG, or BMP file.  Use the Browse button to locate the photo on your drive.  You do not need a lot of resolution for a photo to look good on the web, the one on this post is only 34. KB., use a photo editing program to reduce the resolution.  When you post your ad the attached file will appear on the finished page.  You can attach more than one photo.

Be careful when attaching a file, you only get one chance at it, I have not found a way to edit the attachments.  You can ask the administrator to remove a photo is you are not happy with it.  To change a photo you will need to delete the ad and start from scratch.