Post-Production : Grading in an old version of Premiere Elements by Adrian Parkinson

Hello everyone, first post. A while ago I bought an old copy of Elements 10 that a computer shop had lying around and I'm pretty happy so far. But I've found the grading tools it has a bit lacking. Mainly because the 3-way color corrector works in an odd way. So are there any 3rd-party plug-ins (either free or cheap) available for better grading?