The Tutorials- Books gone wrong

I have been going through the Book: An essential guide to maya Character rigging and found that within the book there are a few miss-prints. This means that when creating a rig, some of the parts didn't move correctly.

Some of the bits in the book's problems might have just been that it was designed for a PC and not a mac, which is why some of the actions weren't happening as they should.

I compared this book to the one of maya 2010, and i managed to sort out a few of the problems.