@julie9kids
ADDENDUM:
Since we know nothing about your situation and what you are wanting to do, in additional to the info I left above, here's another possible scenario. If you have used that account to finish preparing an online return, then when you log in, you may arrive at the Tax Home page. If TurboTax thinks you were finished, your return interview will be closed, and there will not be a full left-column menu with all the tabs. If that's your case, then to get back to the return interview, at the Tax Home look for a link "Add a State." That doesn't really add one, but will reopen the interview and provide a full left-column menu.
NOTE: If you have already filed your return, do not make any changes in it when you open the return interview back up. If you ever need to amend the return, it must start off exactly as it was when originally filed.
