I have been married since 6/10/07 but I just noticed today that they are still factoring Domestic partner...?

...imputed income on my pay stub (it's now 2/19/09). this affects my total annual income as it's reported to the IRS because medical and dental are taxable on a domestic partner but not a spouse. how do I get reimbursed for the extra taxes and other expenses that came of this? (i.e. not qualifying for stat istance when I needed it because it looked like I made more than I did on my W-2's)