You can access your trades through the trade manager click list trade, once you see your trades click this trade #179473 with timfsu2k and you'll see a rating system at the bottom. Once you give your ratings click received.
Glad you got your cards! Don't worry about it if you didn't rate the trade, no biggie. You did successfully award the point though, as I did for you. Next time, you need to rate the trade in each category before you click the "received" button. That way the scores will be submitted.