Some bugs on quiz results overview page

There's a bug on the quiz results overview page (/admin/quiz/id/view) - it seems to me that the explanation on the date format used for the "time started" and "finished?" column are hard coded in there, while these columns actually use the time format you set in your Drupal settings (/admin/settings/date-time), see how the explanation differs from the actual time format used here:

http://skitch.com/vegardjo/b43cc/re-theming-quiz-results-quiz-4-dev-testing

..and as you see there are also some other suggestions there :)

• Is "result ID" necessary information to the users that will see this report page?)
• I believe the explanation on time formats in the column header aren't necessary.
• I believe "Time taken" can be misunderstood - isn't "time used" or similar better? (I'm not a native English speaker though..)
• I believe the "score" header is the only one that could need some explanation, as a score can be presented in both percent and number of points.