Starting back in 2013, TurboTax Advantage members (in addition to the CD you ordered) you will also have access to the program as a download for 3 years for no extra charge. This change happened since many computers no longer have disk drives or many customers later lose the CD and required a download to be sent.
You must use the exact same User ID you used to purchase the software when signing onto your download account here - https://shop.turbotax.intuit.com/commerce/account/secure/login.jsp?pagecontext=download
If that link does not show your purchase for download then use this TurboTax website - https://shopping.turbotax.intuit.com/app/downloads/
Yes you can! There should be a card in the CD case that says how to download it and you will need the 14 or 16 digit code from it to enter.
How to download Turbo Tax instead of using the CD
Or How to download from Turbo Tax
Yes, you can download your software by following the instructions in this TurboTax FAQ.