To participate in Finnish Game Jam, you should first select a location you want to participate in. There will be multiple options again at FGJ 2014. Finnish Game Jam has their own registration, meaning that you have to register through Finnish Game Jam to participate, signing up with Global Game Jam form alone is not enough due to its limitations.
Each of the locations have their own schedules and practicalities, so check the location pages or contact organizers if you’re unsure about something.