Ah, yeah. I've seen some discussion of that, none of which seems to created any really useful dialogue, unfortunately.

Tours are at 10 and 2; I was aiming for 10, on the theory that would be less disruptive of WorldConning than trying to go over in the middle of the day. The synagogue requests you submit a copy of your passport to them in advance--more information here: http://www.jchelsinki.fi/en/visit. I have not actually e-mailed them yet, since I'm still waiting for the friend I'm traveling with to get me a copy of her passport, heh.