I agree, the instructions on the Getting Started Guide are misleading.
Here are the steps that I followed on my Win7 system:
- Look under Other Devices. You should see a device named "Arduino Uno"
- Right click on the device "Arduino Uno" and choose the "Update Driver Software" option.
- Next, choose the "Browse my computer for Driver software" option.
- Finally, navigate to and select the "Drivers" folder of the Arduino Software download (not the "FTDI USB Drivers" sub-directory).
- Windows will finish up the driver installation from there.