Here are the basics steps. 1. Left click on Post Reply, 2. Type a message or short note in the "Your Reply" area, 3. Below the "Smileys" on the left going down the page you will see the area: "Attach file: to the right of that there will be a "Browse..." button, left click the button 1 time. Now you will have a file from your hard drive open up. 4. Find the file/picture on your hard drive you want to post on LawnSite. 5. Double click or left click to select the file/picture, then hit the enter key. 6. You can then check your spelling or Submit your Reply. If you picture is within the parameters of LawnSite.com 800 x 600, your picture will be posted, if not you will get a message that your picture is too large. If you get the message that your picture is too large you will have to resize the image. You must have a software program that allows you to edit/manipulate images.