Credit Card 0% offer

I have told you how I took advantage of the 0% offer from my credit card company and charged my vacation.
I have reviewed all the fine print and its due in Jan 2009, does not say if its due beginning of the day when the Jan 2009 statement will be generated or on the closing date(due date) of the Feb 2009 statement which will be sometime in Jan 2009.
Anyway, I'll be paying extra every pay period going forward and get this debt cleared before the end of this year