Detailed instructions to get crystal weapon spell?

Any one have really detailed instructions to get the crystal weapon spell from logan?

I need it for my build, thanks.

http://darksoulswiki.wikispaces.com/Big+Hat+Logan

Well it may not be detailed but here goes nothing.

1st free logan from sens fortress. Then talk to him back at firelink.

2nd play through the game until you get the lordvessel, place the vessel, and go to the dukes archives.

3rd go through the dukes until you find logan at the bottom of the room after seath kills you the first time. talk to him and than proceed out of that room at the top.

4th keep going until you unlock the path to the second bonfire and get the key to the cell door.

5th go back to the area where you were locked up and free logan at the bottom.

6th go back to the bonfire and logan should be in one of the rooms near the second bonfire before you go to the crystal caves.

7th buy the spell from him and than your done.

Hope this helped even if it was not detailed.

Okay seems easy enough. I thought it would be harder.