As a 1.0 player the only way to receive the additional 30 days is by purchasing the Playstation 3 version.

The PC version will not give you any additional time, and pre-ordering the PC CE will not upgrade your account to CE. Simply put, you CANNOT use your PC registration code on 1.0 accounts. Give it to a friend, sell it, return it, or just don't open the game because it will be useless to you.