With the wiz, it's used to analyse push fold situations at the bubble of sngs. When you import your hand histories it should bring them up in a list with ticks, warning signs, or crosses to the left. (only situations where push/fold is required.)
From this point you can select the hands which are crossed to find out what mistake you made. It should then tell you the hands which you should've folded, or pushed along with a lot more information. In the Screenshot, Ive give the hands that were correct to shove with a red box around them. The KJs was good to shove as it was included with this hands.
However if you see the bluebox, where within it says average, this is where you need to make ajustments based on the style of your opponents. Wiz will then change the push/fold range accordingly.
From anaylsing your previous hand histories you should become more aware of which hands are good to shove, and which are good to fold. After entering reads on your opponents this process becomes more accurate and hopefully your game should improve accordingly.
Sorry the examples aren't the best they were just from my most recent tournament. I'm sure someone can explain this a lot better than I can, I Thought your thread deserved a post as the wiz is to good to give up on.
GL at the SNGs!