First, be sure you are using current version of the sceneries. If you are not sure, download them again.
Then, be sure the installer finishes without any error messages. These are always due to your scenery.cfg being already corrupted so, the installer will not touch it, and the installation will be aborted. There will be a clear warning if this is the case.
If the installer completes, you should end up with an fsdreamteam folder under your main FS9 folder, that will contain the scenery and textures.
Also, you should have at least bglman.dll and bglman_fsdt.dat in your MODULES folder.
If you are missing any of these, but the installer completed without warnings, perhaps is your antivirus at fault, that is mistakenly identifying our files as threats, preventing the installation.
In this case, you need to do the following:
- Install the scenery with the antivirus TURNED OFF ENTIRELY
- Configure the antivirus to ignore the FS\MODULES\bglman.dll file
- Turn the antivirus back on.
- Launch FS9 and try.