In case this helps -- from the log:
Aug 20 20:21:09 Andrews-iMac.local installd[1330]: PackageKit: ----- Begin install -----
Aug 20 20:21:32 Andrews-iMac.local installd[1330]: PackageKit: Install Failed: Error Domain=PKInstallErrorDomain Code=112 "An error occurred while running scripts from the package “Adobe Photoshop Lightroom 2.pkg”." UserInfo=0x7fcc01d19e20 {NSFilePath=./preflight, NSURL=file://localhost/Volumes/Lightroom%202.0/Adobe%20Photoshop%20Li ghtroom%202.pkg, PKInstallPackageIdentifier=com.adobe.lightroom2_0.2.0, NSLocalizedDescription=An error occurred while running scripts from the package “Adobe Photoshop Lightroom 2.pkg”.} {
NSFilePath = "./preflight";
NSLocalizedDescription = "An error occurred while running scripts from the package \U201cAdobe Photoshop Lightroom 2.pkg\U201d.";
NSURL = "file://localhost/Volumes/Lightroom%202.0/Adobe%20Photoshop%20Lightro om%202.pkg";
PKInstallPackageIdentifier = "com.adobe.lightroom2_0.2.0";
}
Aug 20 20:21:33 Andrews-iMac.local Installer[1321]: Install failed: The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance.
Aug 20 20:21:33 Andrews-iMac.local Installer[1321]: Displaying 'Install Failed' UI.
Aug 20 20:21:33 Andrews-iMac.local Installer[1321]: 'Install Failed' UI displayed message:'The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance.'.
