After you file

Trying to check the status of my tax return I put in $0 on refund amount since I am not getting a refund but owe money to the IRS.  I tried entering in the amount I owe but in both cases I get an error saying the data entered does not match.  I know my federal return was accepted by the IRS because I received confirmation shortly after I e-filed.  Also, how can I check the status of my NC state return?  I thought the federal and state would cash my checks as soon as they received them and not wait until my returns were processed.