Listen to em, winny and primo wont do much to burn all that excess fat. Clean up your diet a lot, I mean low fat, limit your carbs and eat stuff like brown rice, whole wheat pasta, whole grain oat's, and lean protein.
If running hurts your lower back definetely get on the elliptical machines and shoot for 30 minutes and find where your target heart rate should be. Then go up from there.
The supp's that will help you are going to be a form of thermogenic (Trex, NYC stacks, xenadrine etc.) a good multi vitamin and lot's of water. Drink as much water as you can.
If you could dedicate yourself to running everyday on the elleptical you could lose weight very quickly with a good diet. The pills are only going to help a little.