Legs Rigged

I had to go back and start over with the rigging in the legs... And they still didn't turn out right.  I think the problem with the way they work now is because I don't have any pole vectors. IK blends, or set driven keys (maybe I'm totally wrong on that).  I really need some help on Tuesday.  I'll try to work on it a bit more by then, but I'm really confused about so things.

Here are the two rig pics I have: