TurboTax does not get W-2s from employers. Ask the employer for your W-2. If they are going to mail it, make sure they have your correct address.
Go to the link below on the IRS web site for more details on what to do if you did not receive a W-2 from your employer. If you end up needing to file Form 4852, you can prepare it in TurboTax and it will be included in your tax return. You do not have to use the Form 4852 that the IRS sends you. But the first step is to contact the employer.
http://www.irs.gov/taxtopics/tc154.html