If you find yourself screaming "Photoshop CS2 9.0.1 Updater for the Mac sucks!" then you aren’t alone. If the updater prompts you to locate the Photoshop application but the application is grayed out, then your version of Photoshop is up to date. Per Adobe support, the updater should not have allowed you to download 9.0.1. If the application cannot be selected then you are up to date.