I've done all that... I talked to that refugee in the beggining of the level, he said he would talk to me if he had more information,i tried to talk to him other times and he always says the same.
I did all quests in the refugee sector, in the flop house,helped that merchant, i beat everyone at pazaak.... and it still doesn't "click"...
Well let's wait for the patch, i really didn't want to start Nar Shadda from scratch... <_<