thats by default is free, so no trialware is available :)
All you need to do is to upgrade your serial number, here is how you do it
Symantec customers with active an subscription status of an integrated Symantec product (see below) are entitled to Symantec Protection Center 2.0 and support at no cost.
https://www-secure.symantec.com/connect/forums/protection-center-20-where-download#comment-6018701