Trouble updating iPhoto 11 v. 9.4.2 on OS X v. 10.8.5. to v. 9.4.3.

Question

I am running iPhoto 11 v. 9.4.2 on OS X v. 10.8.5.  I am trying to update to v. 9.4.3.  I am prompted to run the update through Software Update which opens up the App Store where no update is listed.  iPhoto came with my computer when I orginally purchased it back in 2008.  I have never had a problem upgrading before.  iPhoto is not listed in the purchased apps section in the App Store.  In other words, it does not seem to have migrated over.  When I tired simply purchasing the new version from the App Store it said that the program was already installed and it would not allow a reinstall.  I have tried uninsalling and reinstalling iPhoto with the original disk, but to no avail.  I have tried downloading the file and updating to v. 9.4.3 manually, but the system prompt tells me that I have to have v. 9.1 or higher installed.  I'm already opperating v. 9.4.2.  I have even tried installing previous versions of iPhoto including v. 9.1 and it gives me the same prompt.  I have reset permissions.  I have delted the plist files.  I am pretty tech savy, but absolutely befuddeled with this one.  Any advice would be much appreciated!

Answer 1

First Try the following:
1 - delete the iPhoto preference file, com.apple.iPhoto.plist, that resides in your
     User/Home/Library/ Preferences folder.
2 - delete iPhoto's cache file, Cache.db, that is located in your
User/Home/Library/Caches/com.apple.iPhoto folder (Snow Leopard and Earlier).
or with Lion and Mt. Lion from the User/Library/Containers/com.apple.iPhoto/
Data/Library/Caches/com.apple.iPhoto folder
3 - launch iPhoto and try again.
NOTE:  In Lion and Mountain Lion the Library folder is now invisible. To make it permanently visible enter the following in the Terminal application window: chflags nohidden ~/Library and hit the Enter button - 10.7: Un-hide the User Library folder.
If that doesn't help apply the two fixes below in order as needed:
Fix #1
1 - launch iPhoto with the Command+Option keys held down and rebuild the library.
2 - run Option #4 to rebuild the database.
Fix #2
Using iPhoto Library Manager  to Rebuild Your iPhoto Library
1 - download iPhoto Library Manager and launch.
2 - click on the Add Library button and select the library you want to add in the selection window..
3 - Now that the library is listed in the left hand pane of iPLM, click on your library and go to the Library ➙ Rebuild Library menu option.
4 - In the next  window name the new library and select the location you want it to be placed.
5 - Click on the Create button.
Note: This creates a new library based on the LIbraryData.xml file in the library and will recover Events, Albums, keywords, titles and comments.  However, books, calendars, cards and slideshows will be lost. The original library will be left untouched for further attempts at fixing the problem or in case the rebuilt library is not satisfactory.