Help with Berlin??

I am just utterly confused with the layout of Berlin's city. It seems there are so many regions, mitte, kreuzberg, tiergarten, etc... Could someone suggest me a downloadable map of Berlin? Also I need help with:

1. Where exactly is Ku'damm area? And the KaDaWe which is supposedly in Ku'damm?
2. Is Ostbahnhof the same train station as Zoo Station? I have been seeing only Zoo station on the map when I really need to get to Ostbahnhof.
3. Suggest me a place to stay (preferably a cheap, affordable hostel) close to both Ostbahnhof and Ku'Damm area?
4. Is Ku'Damm area near to all the tourist attractions in Berlin?

I would appreciate any help, thank you!

Berlin is the largest city in Germany. During the cold war when it was divided it developed separately in the east and west sectors. Because of this it has two of nearly everything. For example it has two Zoos; in the west Zoologischergarten and in the east Tiergpark (not to be confused with Tiergarten) (tier means 'animal'). Historically it had 22 boroughs for example Kreuzberg, Mitte and Charlottenburg. A few years ago boroughs were amalgamated and the number reduced to twelve. So now we have, e.g., Friedrichshain-Kreuzberg. The former (to use an Americanism) 'downtown' west Berlin is in Charlottenburg-Wilmersdorf. This is where you will find Zoo (station and the nearby zoological garden) and the Ku'damm. KaDaWe is not in the Ku'damm - it is in Taunzienstra脽e (one runs into the other). If you look at the map you will see that the Sbahn runs in an arc east to west over the top of the centre of the city. Zoo station is at the western end and Ostbahnhof is at the eastern end. This means that you cannot find a hostel that is near to both the Ku'damm and Ostbahnhof. That said, the Sbahn service between the two is really excellent and it only takes about 15 minutes. I would suggest Baxpax as a hostel (there is a website) it is in Skalitzerstra脽e directly opposite the Gorlitzer Ubahnhof (line U1/U15) and bus route M29, both go to Ku'damm and about 10/15 minutes walk from Ostbahnhof. Log into this where you will find a map http://www.tagesspiegel.de/&sa=X&oi=tran...
The main tourist attractions are in Mitte but when you know what to look for there is a great deal to see around the Ku'damm too so the answer to your question four is No. I hope this helps. http://www.berlin-explored.com It might be best if you print this out.

http://www.hotelsdemand.com/Europe/Germa...

bERLIN IS HUGE, ARE YOU KIDDING?

1. Ku'damm area (you want the active part) is south of the big park and Victory momument (west of the Brandenburg Tor). Ka DeWe is one bus stop east of this location...(or a longish walk)
2. Ostbahnhof is way east by the Ball shaped TV Tower....It is in the old Soviet Sector.
3.Impossible ---not close
4. Tourist Attractions are spread out like in no other city due to the Wall.