Easy Try this:
1. Go to
www.imageshack.us
2.Upload a pic from your computer.
3.After the upload it will take you to another screen.
4.There will be a bunch of address bars, pick the very first at the top. Go on the address, right click and copy or to the left of the address bar its a botton you could push to auto copy.
5.Go back to the screen where you want to post the pic, right click and this time paste.