I would suggest using photobucket.com! You upload your picture and as soon as it uploads click on it. To your right will be 3 different links to your picture. Click the link that starts with [ I M G ]... as soon as you click on it, it will automatically copy... You just right-click ....paste the link inside your post and it should pop right up!..hope that helps. :)
If you would like i can also post pictures if the text doesnt explain the process well enough! But its quite simple!