Oh, alright, Well in case you haven't found it already I'll put up here where they are.
1. In the second Oakvale part, the first house on the left has a key upstairs.
2. In the same room, inside the sarchophagus.
3. To the left when you enter the really foggy cemetary.
4. On the first time you go through, after the second banshee, it is down a path a little bit before you have to go next to the house.
5. In the shadow court, there's a large room just after another room with spikes, there is a breakable wall that hides a passage to another silver key in the corner.
6. In the room that has lady grey's torso in it, just to the left of where you would pick it up.
7. When you leave the room with ^ , it is right in front of you.
There you go, if you don't know what i'm talking about I'll try and give better directions.