First Cheque? That's a blast amount my friend! I'm really happy for you! Too bad that your are banned from here
The OP has been banned from this forum since August, so why is people still responding and asking him questions?
Congratulations for your first payment, especially when it is a big fat one. I have been with AdSense for more than a year but my fattest check is still lower than your very first one. Well done, keep it up