while doing our taxes using Turbo Tax, I discovered the program had started as on line and not in desk top which it had done in the past, how can I change from to desk Top now that i have completed most of my return?
Yes. You can open/continue your online return in desktop to complete it and file it.
If you have a state return to file be sure have downloaded and installed that program as well. Now sign in to your desktop (CD/Downloaded) product.
At the sign in landing page you will see a blue bar "Continue from TurboTax Online"; click that bar to make the transfer.
Here is a link for reference if needed.
We see people get confused and they keep logging in to online software which will require them to pay at the end. You need to use the desktop software. One way to tell if you are using the right software---your tool bar. Online software has the toolbar in a black vertical column on the left side of the screen. Desktop software has the tools up on the top of your TT screen.
You appear to be posting from online software instead of the desktop CD/download software that the license code is for. If you are using online, you are using the wrong program. You need to switch to the desktop software to get what you paid for. You have to download it, update it and open it up from your own hard drive to use it.