You don't see it in your profile. However, a very easy way to tell is to pull out your elite card and look at the expiration date at the bottom right corner of the card.

FWIW, 2008 elite status, earned from stays in 2007, is good through the end of the February 2009.

Due to the buyback offer you received, I would venture to say that you will drop to General Member come March 1. However, you will be Silver again after your 12 night stay. You could call MR and see if they can extend your status in light of your upcoming 12 night stay, or call them after the fact and see if you can retroactively get the bonus points, considering you were Silver elite at the beginning of the stay, even though status at the end of the stay is what determines your bonus. Who knows maybe you will get the bonus anyway. I have been the same status for so long, I just don't remember, but my guess is that it is determined by your status at the end of the stay, and you don't get bonus points for the qualifying stay. If I am wrong, I am confident others will correct me.