How do i download google earth plus?

I have purchased google earth plus and my license key has been sent. When I open the e-mail with my I D and go to their link I only get the install shield Wizard.On completion I am told Cleanup complete. I don't get the option to enter my license key. How do I install?|||Did you download the correct version?? Try this page if you already downloaded and follow the upgrade





http://earth.google.com/earth_plus.html|||If you have downloaded Google Earth free version by mistake, run the program and go to Help, then "Upgrade to Google earth Plus" this gives you the option to enter your 15 digit key code.|||depends on your os