and will, as you say, enable you to use your machines on a network.
Before this will work however, you'll need to configure both machines for networking, and I wonder if you've done that? You don't mention which version of windows you're running, but you need to run the networking wizard on both of them. Make sure that both computers have the same workgroup name - it doesn't matter what it is, but the default is MSHOME.
Try doing that, and I'm sure you'll find all is well.