2008? From eleven years ago? Software from 2008 is not available. You could try getting the form from your state. It will be too late to get a tax refund for a 2008 return.
Or was that a typo? Do you mean 2018? Did you e-file your 2018 federal return using TurboTax? If you successfully e-filed your 2018 federal return then you can go back to your account and click Add a State and prepare and e-file a state return. If you mailed your federal return you will have to print, sign and mail the state.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**