Back by request! I've added a tutorial for using Track Changes to the website. Authors who are new to editing can sometimes be overwhelmed or confused by the red lines all over their work after a copy edit. This page should give you an idea of how to use Word's Track Changes feature, how to see the editing and comments, and how to get rid of all the marks so you have a nice, clean manuscript.
Find the tutorial under the Info and About section, or simply click here.