Security Update 2012-001 v 1.1 works
I originally installed 2012-001 and that screwed up Quicken and MailWatch my last 2 PPC apps. After reading that a folder
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/I mageIO.framework/
was the problem I copied that folder over from my clone HD and the problem was solved.
I just installed Security Update 2012-110 v. 1.1 from Software Update over my manual fix.
Both Quicken and MailWatch work as normal. I can print and export from Quicken 2006 with no problems.
Mini 2.53, 4GB RAM, Mac OS X (10.6.8)