Press PrtSc on your keyboard, this will take an image of your screen, open up Paint and click on the EDIT tab and then PASTE, this will bring the image up into Paint, do whatever you need to do then save it to desktop or wherever you want.
Next step go to the following web address:

http://imageshack.us/

Click on BROWSE and locate the file that you want to upload, when you have found the file click on the UPLOAD NOW button, this will upload the image. When this as done you will get some options under the heading LINKS TO SHARE YOUR IMAGE.
RIGHT CLICK on the writing on the right hand side of FORUM CODE click COPY, come back here on this forum then click PASTE wherever you want in your message, job done.

Just one thing more do you know that I am now the devil incarnate because this is my 666 post,