Quest problems

[daenerys]

I have started with Ice and Fire now my second party and although I am at level 51 (and level 60 in the non-F&E version) I still have not found the solution to three quests:

1) Vestlig - where can I find the white captains coat, Marelli, the whale, is missing ?

2) Nordlig - Sven the shipbuilder wants me to find the name plate of a ship called 'Wilde Mähne' (in the German version). I have checked the waters all over the world - alright there is the odd part of the map still unopened, but nevertheless, I have looked around quite a bit.

3) Demonis - I would just love to stop the scratchie epidemic. But whoever I approach in the upper world, the question to this quest does not open. Whom do I have to ask for help ?

As I like to finish all quests - this is really upsetting, not to being able to.

Any help possible? Many thanks in advance

daenerys