I jst finished a 4 wk exercise regime. 2 wks in my knees r stiff and sore when I bend they still hurt n click 2. Why? And can it be helped?

It is caused from swelling. They hurt because you had a good workout. Keep going though - it won't hurt as much as you continue. For the swelling, which also causes the pain, take a good amount of some kind of anti-inflammatory. You will only have to do this once because the swelling goes away and doesn't come back. Good luck.

What exercises are you doing? From the sound of it, it seems to me your form is incorrect. Certain lower body exercises have to be performed using the glutes and quads. If you position yourself wrong you end up using your knees and that kills the knees. If you could give a few more details (you can edit your question for twenty minutes). maybe I can give you a few pointers.