To take a screen shot, press "PrtScr" (print screen) on your keyboard. This copies a picture of what you currently have on your screen. When you press the button watch your mouse cursor, if it blinks, then it worked correctly.
Go to "MS Paint", and paste the screen shot. To open "MS Paint", click on "Start", and then "Run". Type "mspaint" and click "Ok". You can also find MS Paint under Start>Programs>Accessories>Paint. Once you open MS Paint, select "Edit" in the top menu bar, and click on "Paste". You will see the screen shot you took appear in MS Paint. Save the image to your desktop in order to locate it easily. Then you can proceed and print this document.
This is an easy and fast procedure that also looks nice, since you can see the tournament's lobby. them if you choose to post in a forum I would recommend:photobucket.com
which is free