In the "Data" assistant (where the tests are set up), there is a "History" tab. Click on that and you'll see previous history items. Go over the one you want, and then Right Mouse Button->View Results over the one you want. This will load it, and then it will open it in the right pane. You can switch to Yield, Detailed and so on as normal in the same way as you can when the simulation has just run.