Gmoney

Can anyone help me..... I'm stuck and I cant do anything new in the game I have gone to all of the planets and done all obvious things I can't get back to the Jedi base on Telos. I can't get back in Izes because of the war, and I can't get in the hidden evil cave on Korriban because I'm not evil enough. I reactivated HK, but he cant unlock the navicomputer because we dont know the voice that locked it. any advice?