In Bodhi's Lair, I've killed her bodyguards and then Bodhi, but then when I've gone to stake her (like the other vampires) it didn't give me the opportunity to, so I thought, okay I don't have to. I go back to whatzisname who asked me to kill her, and he tells me not to waste time and go and kill her. Have I done something wrong? I vaguely remember after I killed her that she or someone said that it wasn't over and the would see me in some room upstairs. Is this right?
I'm currently in act 3. when i go to the room behind where i killed her it lets me search loot the tomb (or whatever it is) and says that the structure behind it is humming. nothing else.
You don't stake Bodhi until later. After the fight in Act 3 she makes lé grandé dissapearance act, and you return "later" to wrap things (=her entrails) up.
so what do i do now? how do i finish act three? i'm pretty sure i've done just about all i can now.
Report back to Aran Linvail. You can finish Chapter 3 by taking him up on his next offer, or you can tell him you'll come back later (after you resupply) and go finish any Chapter 2 or 3 quests you haven't completed. It depends on how high level you want your characters before you head for Spellhold to rescue Imoen.