You can retrieve your purchased software downloads at this page:
When you go to that page and see the downloads available, if you're saying there is no download button next to each one, then see if a diffferent browser makes a difference.
I have tried using both IE and Google. Neither show a link for my upgrade. My Basic product shows a download link and does work. However, the Deluxe upgrade does not have a link.
If you continue to have problems, please click on the Contact Us form https://support.turbotax.intuit.com/contact/. We’ll help you connect with the right expert for your specific problem.