@sims39: is this different from the previous page?
1. Vista should ask for elevation when starting the installer. Did it do that? If not, that's indeed a bug in the installer (in that case we might rename it to spybotsd-setup.exe or something, because Vista recognizes "setup" as part of the filename as an installer as well).
2. The others inbetween are conditional ones; e.g. there's one to allow you to import the Internet Explorer proxy settings. If you don't have a proxy set up in Internet Explorer, it isn't shown at all.
3. The immunization database isn't part of the updates downloaded during the installation. Maybe we should add it there though, good point
4. Again, that's already answered on the previous page, see FAQ #042 I linked there.
On Vista, even as an administrator, you have to tell the computer you want to do an administrator operation.
5. Also already answered. Should've copied only the open parts ;-p