Incorrect Rating.

I accidentally submitted with a rationg of 0 instead of +1 on the following trade:

http://deckbox.org/trades/20891?s=9433

Also, it might be a good idea to allow users to submit changes after-the-fact to avoid these types of posts.  Perhaps you could send an e-mail to their trade partner letting them know feedback was updated so it couldn't be done completely stealthily, but mistakes like this can happen and it seems like it might be a decent addition.