The Mets just e-mailed this info around today:
2007 POSTSEASON TICKET OPPORTUNITY
REGISTER FOR A CHANCE TO BE SELECTED TO BUY TICKETS
FOR POTENTIAL 2007 METS POSTSEASON GAMES AT SHEA.
The New York Mets recently announced the launch of an online
drawing for the opportunity to buy tickets for potential 2007
Mets postseason games at Shea Stadium. Fans selected through
the random online drawing on mets.com or losmets.com will have
the opportunity to purchase tickets for potential postseason
games at Shea.
All fans that register now on mets.com or losmets.com will
automatically be eligible for the random drawing for single game
ticket purchase for potential National League Division Series
(NLDS), National League Championship Series (NLCS), and World
Series games at Shea.
Registration for the NLDS drawing closes at 11:59 p.m. ET on
Monday, September 10th.
However, fans may register after that for additional potential
series. A limited number of fans will be selected in a random
drawing and will be notified via e-mail by Thu., September 13th
with instructions regarding the online purchase of up to four
tickets to one NLDS game at Shea.