You may be required to update to Premier Edition in order to enter your 1099-S. See if the TurboTax FAQ I'm linking below helps you out.
Where do I enter Form 1099-S?
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***
