Alana - Here is my DH's advice - Hope it works...
If you have a DVD drive on your computer, then play the DVD on that.
When you find the bit you want to take a still shot of, pause the DVD and then press the "Alt" and "PrintScreen" buttons at the same time.
This will put the image onto the computer's clipboard and you can then paste it into a Picture Application, or Word.
Best of luck - Would love to see the pics