Would it be possible to put that bar of buttons (Home, Help, Search, etc.) at the bottom of the page as well as the top? I often find myself wishing for a quick, one-button "Home" route at the bottom of a long page.
The only other thing would be that perhaps these parts and manual updates, along with any "net only" instruction pages, might deserve their own category, so that you could leave everything in one place and users would have a one-stop shop to go to.
EDIT: OK, I see now that I may have a nomenclature problem above: I don't know if "category" is the right word for what I'm suggesting, maybe "their own forum" would be more correct.
Of course, I have no idea how feasible any of this is...