When you say the last login time, I'm assuming you are referring to console logins from workstations and servers?
While EventSentry can definitely show you a history of all logins (including the last one, of course), it's not currently possible to only see the last login.
The only way to accomplish this would be to save the report results in a CSV file and then parse it again with a script to extract only the last login time. Let us know if you'd need any help with this.
We are also planning on introducing a new component in the coming months which interfaces directly with AD, with which a report like this would be possible.