first you cannot file your personal return before the s corporation has been completed because you needed the k1 from the corporation to enter on your personal return.
Now for the download: go to this website and sign onto your download account using the exact same userID you used to purchase the software - https://shop.turbotax.intuit.com/commerce/account/secure/login.jsp?pagecontext=download
@jdwightmc I hope when you say " I bought 2 of the TurboTax at the same time " , you do mean that you bought a copy of TurboTax Home and Business ( or similar for individual return preparation ) and TurboTax Business ( for your S-Corp return preparation ) -- yes?
You need Turbotax Business for the S-Corp. That's a completely different program from TurboTax Home & Business.
TurboTax business is no available as an online product or for MACs. It's for the Windows operating system only. If you purchased TurboTax Businses then you need to download the installation file and install it on your computer.
You will need to complete the business return first, before you can even start your personal return. The S-Corp will issue all owners/shareholders a K-1 which they will require in order to complete their personsl tax return.