Step 2) Press the Print Screen button on your keyboard.
Step 3) Right click in your desktop background. Select NEW -> BITMAP IMAGE.
Step 4) Open BITMAP IMAGE, and select PASTE. Your screenshot is now there.
Step 5) Edit your image as necessaryn, and crop your image so that we don't have to see excessive desktop space.
Step 6) Save image as .png and name your file.
Step 7) Go to an image hosting site (like imageshack) and upload your image.
Step 8) Right Click on the hosted image. Copy image URL.
Step 9) Post image by pasting the URL into the image icon (see below):