First you have to have the screen up of what u want to take a pic of and have paint open then Press the Print Scrn button
After that go to paint.
When you click paste your picture will pop up then you can edit, or deleate stuff from it.
After that download it on photobucket or imageshack, i use photobucket in this thread.
After you find your file click upload.
Then whens it downloaded the page will refresh and a banner will say "Image Uploaded". Then under the pictures theirs URL Link Html Tag and img code. Copy the URL link
Then you make your thread on RSF and when you want to enter your picture click the Img button
Then copy the URL link then press Img again.
After you have done this once you have submitted ur thread the pictures will be their.