How does one add a different (easier) method to adding a mod to a program? Backups are good! I find it easier to rename the file in question to: orig-whatever the filename was and import the new mod under the (original name). If it doesn't pan out I delete the Mod and rename the Orig-whatever back to 'whatever'. Everything stays within the downloaded, original program files.

Side note for Plant Tycoon: c: (drive) Program Files x86. (yup, 32 bit which is fine on Win7)