Crash of the Dredgion Asmo Gelk Camp quest

I have a question about this particular campaign quest. I am supposed to be going to find Kumbanda in Cowards Cove, have killed everything in there and he does not appear. I know that there is another part that tells me I have lost him but how do I get to that point where the quest advances? I cant get past this part to other campaign quests or get in the instances without finishing this. Is there something specific I need to do to advance it to another part of the quest??

 

I have the same problem =S iam wondering if u already know the answer..