Hi,
You would like to know about how the scores wins and losses for Rated games. I will definitely help you with this issue.
- What is the Operating System installed on your computer?
I would suggest you to contact MSN Backgammon game support for further assistance.
http://zone.msn.com/en/support/article/supporthubmultiplayer.htm
I hope it helps. If you have any issues regarding Windows in future please let us know. We will be happy to help you.