skyrim dawnguard dlc

[vixenVIPER]

What you need to do is look on this map http://www.gameshampoo.com/magazine/imag...cation.jpg and go to the location. (You'll come to a cave by the X which you enter, and end up on the other side).

erm nothing from the dlc appears in the game...

Just go there, mate! Nothing from the game will be shown until you go to that keep. Not even the keep itself will be shown until you've discovered it, just like everything else.

If that doesn't work, then you need to do what the people above suggested. Good luck!