Simply replace the old data folder with the new one. How you do that is up to you.

Alternatively:

Copy the new "TyrellN6.data *****" folder to the same directory as your current "TyrellN6.data" install.
(*****=DIVA/CARBON/BLUE/RED)

With them side by side you can easily copy the new "Data" folder and replace the old one, 
click yes to any confirmation messages.

Feel free to delete the "TyrellN6.data *****" folder when you're done.

Enjoy!

CAUTION:

Do not replace the whole folder as you may lose any non stock patches you have saved.

