Its true ladies and gentlemen,  xbox live 2 month trials dont expire, they may show they are expired on the card, but they still work! You dont beleive me, then check in on your xbox, or call xbox live and give them the code *note: (If you call xbox live dont tell them the card is expired just give them the code) They do work, I have tested over 100 EXPIRED codes and every single code works. I am including trial dates they are:

10/1/03-3/31/04             (These codes have a chance, they may work they may not)

4/01/04-9/30/04           (All these codes have worked)

8/01/04-3/31/05             (All these codes have worked)

10/01/05-12/31/06         (All these codes have worked)

I hope this guide will help you, if so please leave your feedback about it

Thanks