I have been playing fable since September 2006. I have completed it three..

Question for Fable

I have been playing fable since September 2006. I have completed it three times and working on my fourth. Just have a couple questions hope you all can help.
1. Can you change the hardness of the game? ( example: easy, medium, hard)
2. Where the hell are all the blue mushrooms? ( can only find three)
3. I have been married to lady grey for a while can I still kill her?

Some little things I have found out are:
1. If you see a ring of flowers with dirt in the middle, dig in there, there is a prize.
2. You don't have to kill your sister to get a good sword, you can go to mazes headcourters and find all his books. Then go down to the tombstones right below and read them all, you will get a good sword.
3. To get into the tavern door, go to lookout point around 10:00 game time. The statue will be pointing towards bowerstone. Walk to the tavern doors and they should be open.
4. To get into the demon door in greatwood caves, go into the hobbes caves kill alot, and then come out talk to door, use slow time, and start shoot arrows at him, it should work.
5. When you have the quest to go to clifftop path, one simple way to get around the bandits is use slow time.
6. always use slowtime, it helps alot.
7. there is a save glitch, save during a quest, its called a hero save. It doesnt record world data, so if you get alot of items and die, you will keep the items you found, but there will be more there when you go back and do it again.
Hope these help and hope you can help me.
Thank - you
Faith