Two more quick points, first how to turn the reputation system on, and second how to view your reputation comments.
How to turn your repuation system on.
Von Poop addressed this before in the
repuation feedback thread, but I'll repeat what he said:
User CP > Edit Options > first tickbox on that page "Show My Reputation Level" then save changes with the button at the bottom of the page.
Any comments then show when you visit your control panel.
How to view your reputation.
Simply click on the link to your user control panel, it is the "User CP" link at the top left of the page. The last 25 feedback comments, wether positive or negative, will be listed.
Please note that reputation comments are anonymous, so if you want the person to know who is leaving a comment, include your name.