Press the 'PrtSc' key on your keyboard.
Go to Start > All programs > Accseosiories > Paint
Then press 'Ctrl + V'
Your screenshot should appear.
Then go File > Save As... > Save as type: 'Select JPEG' > Save
Then create an account at www.fileden.com
and upload the picture.
It will then give you the url of the picture
Enter the url of the picture like this:
[img]url of picture[/img]