It's in the smiley toolbar section. Look for this icon.
Click on it and you will see the instructions for uploading a picture.
Directions on how to use:
1) Click the "Browse" button and point to the image on your drive. Accepts either jpg or png format.
2) Click "Add File".
3) Repeat 1 + 2 if you want to add more than one image.
4) After you're done adding images, save as either "Lightbox" or "Traditional".
5) "Lightbox" will post your original image size (up to 1650 pixels wide) in with a subdued background on a pop-up page.
6) "Traditional" will post your original image size (up to 1650 pixels wide) in a solid background on a pop-up page.
Wheels