newbie Rails/DB questions

I am new to rails, new to programming and am currently reading the
"Agile Web Development with Rails" book from Pragmatic. I was trying
to follow the book by entering in the depot demo and I got hung up
trying to create the tables for the DB on pg 54. So my question is.
Where can I go to find out what I am doing wrong? and Where is the
best place to ask questions regarding MySQL newbie questions on Rails?

Thanks in advance.

You're probably at the best place here. What is the problem you're having?