you're not following the instructions. Read and follow them step-by-step
Simply running windows update will not work - you have to manually select the driver and then download it as the instructions state
the driver IS there
its also available through the Windows catalogue
Microsoft Update Catalog
the driver you need is the one named "Hewlett-Packard - Printing - HP Photosmart 330 Series (DOT4)" listed as "Windows 7,Windows 8 Consumer Preview " and dated / versioned "1/24/2007 61.63.346.0 "
You have to select it and then download it through the shopping list
It downloads as a CAB file