OK...so after you are dead, zengen, please can you explain how "you" will get another body which will be tortured in a hell realm?
Buddha said that unless we attain the enlightenment of an Arahant, we will continue to be reborn in the six realms. The hell realm is one of the possible realms where we can take rebirth.
How does that fit in with anatta?...
Not sure how to answer this. But anatta does not mean there is nothing after death.
and where is the hell realm located ?
The hell realms can be seen by some of those that practice the Dhamma.
Quote from Ajahn Maha Bua:
...as I turned my attention to investigating my past lives, it was terrifying to think how many times I had been born and how many times I had died; how many times I was reborn in hell; and how many times in the heavens and the Brahma realms, only to fall back into hell again. It appeared as though the citta was climbing up and down a flight of stairs.But the citta itself never dies. Do you understand this?
The citta never dies. Kamma is buried there in the citta. Good kamma leads the citta upward to the heavens and the Brahma realms. Then, when the good kamma is exhausted, the bad kamma that has lain buried pulls the citta down into the realms of hell. It is as if the citta were climbing up and down a flight of stairs. Do you understand? This is the way it is, so wake up and take notice...