set up a photobucket account at
http://www.photobucket.com
Click on the green button.
The box to the left Browse to where you saved the picture on your computer. Double click it and it will upload. You can hold the ctrl button to while selecting to select multiple photos.
After uploading you can add tags, descriptions ect, and then hit Save.
If you hold your mouse pointer over a picture you'll see the menu drop down. Copy the IMG code, and paste it into a reply here on the forum. Be sure to highlight it as shown in the picture.
If you are trying to display a picture from a website. Right click on the photo and go to properties. Copy and paste the address link into the reply box. Highlight the link inside the reply box, and then click the Img button above.
Hope this helps.