I believe in that situation you have to manually put the income in that is being taxed by both states and then allocate the amount of tax NY is charging.  I would use a percentage of total income and total tax and then multiply the tax times the rate of the income was earned while a resident in NJ to come up with the tax.  That will get it to work, but I am not sure how to get the program to do the calculation itself.  I believe you ahve to put the numbes in yourself to that schedule.