IPhoto 9.1 Update has damaged code signature

I just reloaded the 9.1 update for iPhoto, and it still has a damaged code signature (sealed code resource is missing).
This will continue to create warnings, when the Firewall is turned on.

As the original poster of this question, I want to note that my problem remains the same. As a very old hand at working with Macs I can point out that of course I tried the installation in Safe Mode for both the OS and my Admin account. NO CHANGE. It's a bad installer.
All my experience with this unique problem tells me it is an APPLE error that requires APPLE attention.
I am deeply troubled to see people replying to this issue having to jump through flaming hoops of annoying nonsense in order to get the update to work. How incredibly MICROSOFT. *SHUDDER*
Wake up Apple!
Taking a cue from the Microsoft PITA nature of this updater, I'm going to pull the usual routine one is forced to do on a screwy Microsoft installation and delete the whole show and start from scratch. If this PITA procedure works, I will provide another post.
I will also be calling Apple directly, bashing my way up to 3rd level experts, to have them sort this out. If they have a solution, I will post.
If all fails, I'll let the issue remain open and unanswered.
Apple: I am NOT amused. Fix your uniquely lousy iPhoto v9.1 installer!

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