To get all the channels on the Dish 1000 it takes 3 LNBs (those little things that pickup the signal that are mounted on the dish.) My guess is that one of them is bad and that's why he could only get two of them to pickup.
When I got my first dish I installed it myself, took about 3 hours, most of the time was spent learning how to aim the dish to get the signal.
The fact the he got 2 working right of the bat, says he had it aimed correctly. I suspect that replacing that one LNB will fix the problem. John