I'm still thinking that the file \Windows\SprintNavigation.exe is the way to go...
I tried pulling it off to attach here, but it won't let me. I can't copy or rename it so my guess is it's a file on the ROM, which means you should still have it on yours. I'd be surprised if it was delete-able.
Here's the original link file. Download it, rename it to a .lnk (first letter is a lowercase "L" and not a capital "i" as I've seen some people mistakenly use on here lol), and place it in the \Windows\Start Menu directory on your Q9. That should give you a link on your Start Menu which should run the SprintNavigation.exe. Assuming I'm correct on what that file is, that should kick off the download and install. Well, if memory serves me correctly, it will take you to a page where you can kick off the download and install.
Shouldn't hurt anything if it doesn't work and then if it doesn't you can just delete the .lnk from the \Window\Start Menu folder.
UPDATE: I decided to throw caution to the wind and run the SprintNavigation.exe. If did in fact open a browser and take me to the page that has the "Download Now" button. Here's the link it takes you to:
http://otacdn.telenav.com/ota/sn/nav/sn-mot-q-q9c/
and yes, entering that into the address bar will also take you there.
Good luck with it!