Check out post #20 in this thread:

http://www.bikeforums.net/showthread.php?t=401069

In addition to Sheldon's instructions, this should be all you'll need to take the hub apart. Use the links mentioned.

I had stuck pawls in the first one I took apart. I was also quite worried about opening it, but 30 min of work saw the hub working like new.

Have fun.