Only the TurboTax tax returns that were started with the online editions would be available online.
Tax returns started with the TurboTax desktop editions are only available on the personal computer where they were started. TurboTax does not store online any of the desktop tax returns. TurboTax does not have access to any tax returns not started with the TurboTax software.
To access your prior year online tax returns sign onto the TurboTax website with the userID you used to create the account - https://myturbotax.intuit.com/
Scroll down and on the section Your tax returns & documents click on Show. Click on the Year and Click on Download/print return (PDF)
You can also get free transcripts of your federal return from the IRS - http://www.irs.gov/Individuals/Get-Transcript
For a fee of $50 you can get a complete federal tax return from the IRS by completing Form 4506 - http://www.irs.gov/pub/irs-pdf/f4506.pdf