You can find the system requirements at his address: http://www.aspyr.com/product/game_specs/85
After comparing those major factors, I'm afraid her laptop is not capable of playing the game. Those graphics are really holding you back. You might want to see if you can return the game (but from past experience, someplaces don't like returning computer games because of people making illegal copies and what not) unless you have another computer you can put it on.
You could always try seeing if you can turn the graphics settings down in the game, but still I don't think the laptops graphics can even handle everything on low settings.
If you have further questions, feel free to ask.