本人打算申请2006年的MBA入学。我在2004年5月参加了托福考试，不知道成绩是否仍然有效。谢谢。听说耶鲁就算过期了。

two years

2年是指从今年申请时开始算还是从明年入学开始算啊?

For Yale and HBS, as they said officially, your score of May, 2002 is expired since they consider it must valid untill you enroll in August. However, i do know a guy who got in Yale this yr with a score taken in Jan, 2001. So, for sure, you'd better ask ADCOM to confirm. The bellow is the answer i have got from some school, (my test was taken in Jan 2002) hope it can help you all. FYI: 第一种情况： YALE(要到8月的), HBS(要到九月入学)、 UIUC 第二种：(The Toefl is valid for two years from the date you took the exam to the date you submit your application.只能用到递交申请之日)：WHARTON, COLUMBIA,CHICAGO,IOWA,TUCK, Mich 另外，只能用于第一轮：INDIANA(只能用于第一轮12。1), 第三种：能用的NYU, DARDEN, SIMMON, ADERSON, UBC, CAMBRIDGE, LBS,Oxford

I am in the same case. I inquired with some schools. Some said"sure, it is valid." Some said"no, it is invalid because it is more than 2 years until August, the entry time of enrollment."

it really depends on which school u apply. So u'd better ask school directly. Good luck!