Cliff,

The easy way to remember how to hit any uneven lie is to get your set-up to feel like a level lie.  Therefore for a downhill lie you should have your eyes, shoulders, hips and knees parrallel to the slpoe of the land.  This will enable you to swing the club down the slope as if it were a flat lie.  Be sure you are sensing you are swinging down the slope with your club. Because you are on a downhill, the club will hit the ground earlier in the downswing and impact area so you must play the ball further back in your stance. The ball will come out lower. Depending on the severity of the slope you should be able to put a club on the slope and observe how much loft is taken off.  i.e. I put a 7 iron on a downhill lie and see when I look at the club it looks like and has the loft of a 5 iron.  This does not mean it will fly as far as a 5 iron but it will hit and run usually farther than the normal shot will be. A word of warning, it is very difficult to hit a long iron (4 iron on less) and a 3 wood off even moderate down hill lies.

In a divot on a downhill?  First I have to say, you must be getting some bad luck! To hit the ball out of any divot you must set up to hit the ball first.  This usually requires a more level set in your shoulders that get set up by having the ball a little further back in your stance.  Hence on a downhill, in a divot, be sure the ball is far enough back in your stance to counter the slope and ensure to catch ball first out on the divot.

Cliff, remember: 1) Set up and swing with the hill; 2) ball further back in  your stance; 3) less club than normal; and 4) play for the ball to run some after it hits.  Take a few balls out one day and experiment on the course with a variety of clubs.  Knpowing how to hit this shot will save you some strokes during your rounds!