After the guy has come running to you and you complete the quest by slaying the vampire you should learn that he lives in the imperial city.
If you've been kicked out once before, and re-accepted, there is no way back in if you got kicked out a second time.
Oblivion Dust ended in 2001.
Oblivion Dust was created in 1996.
No, you do not. You can only become a vampire by being bitten by one, either contracting Porphyric Haemophilia from vampire enemies, or by allowing Vicente Valtieri to turn you into one.
When trying to cheat your way into getting an item on oblivion, you must type in my trustworthy cheat code (hallelujah!), player.additem After the additem type in the number code for the item you want (Vampire Dust is 00009182). Once that is all typed in, hit the space bar and type the number of the item you want. So, here you are; player.additem 00009182 1 That is the cheat code for 1 Vampire Dust. Enjoy this heavenly console command cheat code!
You have to kill a will-o-wisp.
Near a dead vampire
yes
yes dust mites can get anywhere dust can get.
If you are getting it for the daedric shrine quest there should be a will-o-wisp sowewhere close by the shrine. you need to search it for the dust.
Once a week or they turn to dust
Vampires turn to dust in the light. That is why they sleep in coffins.