To see completed transactions in real-time please use Transaction Monitor
This displays the last 24 hours of transactions
To see transactions for a specific date-range please use either Transaction Search or the various reports available in the report menu
PLEASE NOTE - most reports / searches will only allow you to see/report upto the precedent midnight - ie transactions of TODAY are not displayed
For systems utilising Hosted Payment Page, you can also use Hosted Payment Search, which is capable of displaying all attempts for a particular date.
All information known to us on every transaction is displayed in the portal in the various tabs and reports.