Year End Inventory Close issue

Hi All

I am trying to close the 2012 calendar year for inventory however when I read the Inventory year-end closing procedures I saw that no new transactions (ie transactions for 2013) should have been posted for inventory. I know there were some 2013 transactions posted. My dilemma is when I close the 2012 year,  the transactions for 2013 will be zeroed out. How can I fix this so the 2013 transactions will not be zeroed out or if they are, how I can enter the 2013 transactions without duplication of amounts on the GL side.

Any help will be greatly appreciated.

Erica