I did this quest yesterday, and Sadelli got a Tef as soon as we got into Mos Epsa.  Needless to say, the crackdown ST's killed her, incapped me, and I had to re-do the mission. We snuck in a back way through town and was able to finish the mission second time.                         

Completed Mission Chain today - rewards are 1000 credits, 2000 credits, and 4000 credits.                                                                

voila je suis sadelli abdeslam,j'ai trouver ce site et je cherche qui sadelli,je cherche a le connaitre.
cordialement sadelli abdeslam.                                                   

I was able to complete the entire quest string.  After you save Sadelli, Jilljoo tells you to save Sadelli's sister. After the sister, Jilljoo tells you to kill some of Jabba's thugs. I had a problem with this last mission since if you're incapacitated the mission fails. The string finishes once you kill the thugs and talk to Jilljoo. She says thanks, you get thirty credits, and that's all.

yeah trying to do the second quest 3 times now and everytime i get to the waypoint there is no slave whatsoever...its pretty broken                                                   

It works.  I returned Sadelli to the cantina, and I got 30 credits for my effort. Kinda worthless if you ask me.                                                                

The quest works as far as I know, I haven't finished it yet.  After you bring Sadelli to the cantina, Jilljoo says that she won't leave without her sister Soobali(or something like that). I got sidetracked and never finished it though.                                      

This seems to be broken.  Once in the cantina, sadelli says she doesn't know you, and jilljoo says he thought i'd be more useful then tried to give me the quest again while sadelli was still standing there.