Thanks guys, I went to that link and in the section "DOWNLOAD FIRMWARE (N9 SPECIFIC)" I go to the subsection "Any OS:" and click on the link labeled " Nokia Firmwares". Errors as noted above.

My phone seems to be already at the latest update. On the Settings -> About product, it says:

Nokia N9
MeeGo 1.2 Harmattan

Version
PR1.3
(40.2012.21-3_PR_005)

I'll try reflashing on Windows.