You can download the 003 Factory Bundle installer from
this page.
At the bottom of that page, you would download "003 Factory & Producer Factory Pro v8.0 (Win) for Pro Tools 7.3-8.0".
Then download and run the "Digidesign Plug-in Updater v8.0.3 for Windows"
from the
Pro Tools LE 8.0.3 for Windows Downloads section.