If you are looking for this previous information:
You can still access it on the new website in two different areas. First, on the Mass Cash game page (after clicking Mass Cash from the home screen) and you will see a "Results By Day" section:
The jackpot winners (if there are any), will display in the Prize Payout table on this page. You can also select the View Recent Winners button to go to the Winners Page where you can view all historical Mass Cash jackpot winners.
The second place where winners can be viewed is on the Winners page. You can select any game, or any combination of games from the top menu and the winners will be displayed in the list below. Keep in mind that winners on this page are delayed as compared to the "Results by Day" screens shown above: