Thanks guys, maybe we will try Manala then if that is nice. I emailed Helsinki Tourism and they sent me a long list of Restuarants/Bars/Clubs that were open on 24th/25th/26th December last year and the times they were open to. Manala was open from 6pm - 4am on the 26th last year so no problems there but there were other restaurants that were open until 11pm or later. Is Manala close to an area where we might be able to take some nice photos around town after dinner? Or any other suggestions are welcome!! These were some of the other restauarants that were open late according to the Tourism Office, are any of these any good food/location wise?

Belge, Kluuvikatu 5, tel.010-766 3590 11-23
Kynsilaukka Garlic, Fredrikinkatu 22, tel.651 939 (garlic) 13- (entr. before 23)
Kämp Cafe, Pohjoisesplanadi 29, tel.5840 9530 11.30-01
Lastu/Scandic Continental, Mannerheimintie 46, tel.4737 2207 17-23
Makasiini/Scandic Grand Marina,
Katajanokanlaituri 7, tel.09-16 661 18-23
Manala, Dagmarinkatu 2, tel. 580 77 707 (Fin-nish/home-cooking) 18-04
Savotta, Aleksanterinkatu 22, tel.7425 5588 (Finnish) 17-23
Salve, Hietalahdenranta 11, p.603 455 14-23
Teatteri, Pohjoisesplanadi 2, p.6811 1311 11-01
Zetor, Mannerheimintie 3-5, t. 010-7664 450 (Finnish, tractor theme restaurant) 12-24

Thanks again for your help!