You can view your old reports by clicking on results tab on the left sided menu and then click on the Summary tab in the drop down menu that will be opened .
A new window will open in which you will see your organizational scans click on the one you wish to get an older report from
The results dashboard will open , in the bottom left side of this dashboard you will see the tittle
" past report select a date " click on the arrow down button under it ( where it has a date )
A drop down menu will open in which you will be able to choose the historical report by the date scan finished . Choose a specific date and click on it , the old report will show in the dashboard and you will be able to view it in html pdf and other methods .