Your content will not be found within the Program Files folder. This is a restricted area that Windows has set up to prevent sharing. The 1 location should be under Users>Public>Public Documents, this is where your content should go, and the other should appear under Users>[your name]>Documents>DAZ3D>Studio>My Library. In my case, any content obtained from Renderosity is checked beforehand and unzipped to a different folder called My DAZ 3D Library; this folder was created by DAZ Install Manager and it is how I install content directly from DAZ3D.com.