If your amended return has missing information, you should first go back through your federal return (starting at the Personal Info tab) and make sure everything's correct. TurboTax transfers data from your federal return to your state return. If the info in your federal return is incomplete or incorrect, your state return won't be complete or correct either.
Once you're done, select the State Taxes tab and review the state section. Pay close attention to the info, especially if you made changes to your federal return. There might be new sections that need to be completed.
Sometimes changes made to your federal return won't transfer if you override info in your state return. If this happens, delete your state return and start over.
The amended return brings forward the social security number on the first page, but not on the subsequent pages. It's a good think I reviewed carefully because I had to hand write in the social security numbers on the subsequent pages. This is a Turbo Tax problem, not a user problem. Also, the forms were not in the correct order.