Using Free Trial but bought box from Amazon. How to switch over?

Hi all, I downloaded the trial version of Internet Security 2009 and liked it. I didnt like the price of 69.99 tho so I bought the box from Amazon.com for 42.99. Now I want to switch over to my purchased version. I would like to retain the settings I have already and all the stored passwords and whatnot so would like to avoid uninstalling and reinstalling. Can this be accomplished before the trial period ends so I am not left unprotected for any period of time?

 

Thank you very much,

Carole

 

PS I have already cancelled the trial version online so they dont tag my credit card for the 69.99 but the trial still works, I imagine til the end of the 30 days.