TurboTax only retains online tax returns for the last 7 years, the same retention period as the IRS. There is no way to retrieve a 2004 tax return.
However, if you have the .tax file from TurboTax there is a service that may be able to provide a PDF of the return for a price.
Go to this website - https://www.taxprinter.com/
Note - This service is not recommended by TurboTax
