Greywolf - some pics to help.
1) The Print Screen button should be up here. Just whenever you have what you want to copy, press the button.
2) I open the "Paint" program that comes with most PCs (in Accessories) and select a new blank page and then "Paste". I get this. Then I save as a jpg and name it.
3) Then I open "Infraview" program (its free off the web), open the newly named jpg - crop, resize, whatever. I can get this.
It only takes a few seconds and is alot cheaper. If you want to go Picasso you can get those programs that the others suggested. I love doing this while playing a flight sim and use as wallpaper or other.