The chapter "Introduction to Ruby" in the Book "Foundation Rails 2.0" have cleared and systematized a lot of issues about Ruby in my head. It is really worth reading, because it will give you a lot of basic knowledge about Ruby, and the way the things are brought to you by the author is very easy to understand. So it is definitely the chapter that is worth going through if you are not familiarized with Ruby.
Now going strictly to the Rails. I hope it will go much smoother than the last times.
Wish me luck!