Datacolor User to User Support Group.

I purchased Spyder3 Elite on 11/25/08. Didn't want to send in rebate 
UPC from package until I was sure it could work with Vista 64.  I thens 
read that Datacolor had extended the rebate. I was about to send in for 
the rebate yesterday, but noticed the extended rebate address is 
promotion #21150, PO box 22092 - not Dept 113905, PO box 52900 for the 
original rebate, which said needed to be postmarked by 12/31/09. Which 
Address should I send to? Am I too late for the original rebate? I just 
noticed that the extended rebate says receipt must be dated  between 
December 5 and December 31, 2008! My receipt is dated 11/25...