I need to see post count by member for a defined period

[bjkinzluvr]

I cannot find anywhere in the Admin CP where I can run a report to find:

The number of posts made by members within a defined period of time.

I ran a contest to award the person with the most non-fluff posts within a 2 week period. Now I cannot find a way to acquire that information.

Help?

--------------- Added [DATE]1235232511[/DATE] at [TIME]1235232511[/TIME] ---------------

Bump please. I really need to know how I may do this. I need to determine which member had the most posts in the last two weeks and declare a prize winner today!

Thanks.