To access your current online tax returns sign onto the TurboTax website with the userID you used to create the account - https://myturbotax.intuit.com/
Scroll down to the bottom of the screen and Click on Add a state
This will take you back to the 2017 online tax return where you can make any changes as necessary. Once the changes are made and you have gone through the Final Review procedure, then print the tax return again.