Find a list of programme in English here!
Most of the program is organized in Finnish. How ever there are some lectures (GoH-speeches and panels mostly) that are held in English. Most of the gaming tournaments do not need fluent Finnish skills, as all the games are playable in English - and Finns tend to speak English too.
Some table top roleplaying games and usually at least one larp are playable in English. Collectible card games, miniature games, board games, larps and table top roleplaying games have their own Info Desks at the venue - more detailed information can be asked from there.