In light of the recent usability discussion and multiple reactions of users not being able to find a manual and/or how to install PND files, perhaps it would be a good idea to link to the
unofficial user manual on the
Games and Programs page of the main website (I'm assuming that is the main entry point for users searching for software).
In particular, I think the
PND installation instructions should be highlighted or perhaps even included ad verbatim on that page.