All you have to do is go here to get details. All it takes is an email. You have until 12:01 PM tomorrow.
Since you are here, how about some cards:
2011 Topps Opening Day Retail Pack:
68 Jeremy Jeffress RC
61 Jason Bay
133 Alex Rios
9 of 10 Buster Posey Spot the Error
199 Francisco Liriano
111 Nelson Cruz
206 Rafael Furcal
>>> Nothing to crazy here. But, please, for the sake of my sanity, could someone tell me the error in the Posey card. I'm usually decent at things like this, and have been able to get the other Spot the Error cards fairly easily, but damn, I can't find anything in this one.