I agree with Zack on this. I worked on hip distraction, smashing behind the knee and the upper calf, as well body weight exercises like air squats, pistols, lunges, and hip flexor mobility exercises. After a couple weeks of this with light maintenance work in the problem areas has yielded tremendous results for me. I suggest that you pick up Kelly’s “Becoming a Supple Leopard” book which is very well organized and will offer you quick access to information and demonstrations that will help you resolve your knee pain issues along with any other issues you may have with pain.