In that first image, you look like you are trying to install it into an incomplete installation of FSX (there sould be more than just the effects and simobjects folders.
When installing, why do you change the location  it needs to install  (doesn't it already point to the correct location of the flight sim you are installing it to)?
If you right click on the shortcut for FSX, and select properties, it should show where the target (fsx.exe) is.
Are you trying to install this in FSX-SE?