Fixing 603197: Package Installs Crash on 10.4

SUPackageInstaller.m

@@ -41,6 +41,7 @@ + (void)performInstallationWithPath:(NSString *)path host:(SUHost *)host delegat
 	if (floor(NSAppKitVersionNumber) == NSAppKitVersionNumber10_4) {
 		// 10.4 uses Installer.app because the "open" command in 10.4 doesn't support -W and -n
 		command = [[NSWorkspace sharedWorkspace] absolutePathForAppBundleWithIdentifier:@"com.apple.installer"];
+		command = [command stringByAppendingString:@"/Contents/MacOS/Installer"];
 		args = [NSArray arrayWithObjects:path, nil];
 	} else {
 		// 10.5 and later. Run installer using the "open" command to ensure it is launched in front of current application.