Have you found the pieces of Dragon Armor (gloves-Dark Forest, shield-Stormfist castle, belt-Verdistis - these are the first ones to be found, check the spoilers on the forum), you'll get the helmet and the plate armor later, after solving another quest (gathering the council, dwarven member ), don't worry about it.
I don't recall this ever being in my quest log, though ( <img src="/ubbthreads/images/graemlins/think.gif" alt="" /> if it was, I overlooked it...I'll be there soon with my new character, so I have to remember to check this...) - but even if it gets written in the quest log, it's really late in the game. So don't worry if there's nothing in your log - just make sure you find all pieces of armor (and don't forget to save before you identify them), you can get really great stats <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" />, and there's bonus when you get them all...
