As far as i'm aware the PMDG 747 for FSX still hasn't been released. Although i'm under the impression they're working on it. Can't remember exactly what our latest contact said about the update.
Pretty much all you need to know will be on their site and in the forums.
http://www.precisionmanuals.com/
I pretty sure it's a similar story with the Level D. Although i'm far more in the dark about this add-on than the PMDG. I'm sure they're working on it.
More info can probably be found on their site too, and most probably in their forum.
http://www.leveldsim.com/sevensix_home.asp#
SHG.