If TurboTax thinks you were finished and were going to print and mail, your return interview will need to be opened to change the filing method. To do that, log in and go to the Tax Home (it may open at the Tax Home already). Then to open the interview click on the link "Add a State." That won't really add one, but will open the interview back up. Then once inside your return, go to the REVIEW tab to see if there is anything preventing you from efiling. Then go to the FILE section and change the filing method from print/mail to efile.
If you get some error message in regards to efiling, post in the forum describing the problem in detail, and someone may be able to tell you what to do.
