After you file

Withholding from what? A W2 or maybe a 1099R?

Federal Taxes or Personal (Home & Business/Self Employed version)
Wages & Income
Then scroll down to Wages and Salaries- Click the Start or Revisit button
You should get a box listing all your W2s.
 
Then click  Edit by your W2 to double check it or change it.

The state wages is in box 16 and state withholding in box 17.  You have to scroll way down to get to State. Make sure to fill out all 3 boxes 15-17 and put in the right state.