Ok, I typed up this whole repy, complete with EVERYTHING you could POSSIBLY want to know, but this computer hates me. Soooo...
http://first.bghs.org/nuke
go to the misc. forums, find the thread entitled "Trading Card Request" Put some contact information (team email or the like) and we'll get you what you need. Have a trading card? "Trading Card Feedback" thread, tell us what you think there. Or here. We're flexible. Not at Championships, but want a trading card? Again, "Trading Card Request", post contact info, we'll get you what you need.
Sorry this sounds so abrupt- keep in mind, I spent half an hour making these threads, getting all the correct information, wording it correctly, then my mother's computer loses it all. Ah, well, such is life. If I'm missing anything that you would like to know, just contact me (see above).
Have a great time, enjoy your Trading Cards!