Anyone else having difficulty with this? I know I am supposed to speak with everyone in the cantina, which I have. Then, youre supposed to speak with the droid outside by the scavenger trash heaps, and he is in turn is to sell you the broken droid parts which are a major clue to solving the murder. However, I have tried many times to talk to the droid but he wont sell me the parts I need. Annoying, seeing as how I cant get any farther in the mission...