Need help with viewing drives/top level folders in OS X

This is probably an easy fix, but when I have tried to adjust it on my wife's MacBook I have not been able to figure out the solution.

When my wife opens a Finder window...let's say by clicking on the Finder icon in the Dock... she sees a list of folders within the Home level of her computer in list view and nothing else, just a window with a list view of the various folder and possible errant files within the Home 'folder'.

When I open a Finder window, I have the list view of folders/files PLUS I can see to the left, a list of all drives and computers accessible to me as well as the history folders and the Images, Movies, Music folders...etc.

How can I get my wife's MacBook to display Finder info like my computer does. It makes is rough to go to drives attached or on the network or to be able for her to see all of her images in one location (which would help her tremendously).

I have looked under Views and the solution doesn't seem to reside there. We can change to icon and Coverflow views without a problem, but can't see the leftmost column...the top-level list of folders if you will.

Thanks in advance!

EDIT: Snow Leopard on both machines if that matters. And my computer is a 2009 iMac Mini, she has a 2009 white MacBook.

 

Awesome!!! Thank you so much.