Thanks for you input When I view my downloads, there is only one link that downloads the .exe file. So I don't have a choice there, or anywhere, for 64-bit. I purchased the full-version (instead of the upgrade), verified by viewing the policy before installing.
Maybe Microsoft used to provide a choice. What I've read, so far, is the .exe will download whatever architecture it's being ran on. Since I ran the downloaded on a 32-bit Windows, that's what it downloaded. I'm downloading the .iso on a 64-bit Windows to see if it downloads the correct version.