To get rid of tracked changes and comments, you need to accept or reject the changes and delete the comments. Here's how: On the View menu, point to Toolbars, and then click Reviewing. On the Reviewing toolbar, click Show, and then make sure that a check mark appears next to each of the following items: * Comments * Ink Annotations (Word 2003 only) * Insertions and Deletions * Formatting * Reviewers (Point to Reviewers and make sure that All Reviewers is selected.) If a check mark does not appear next to an item, click the item to select it. (these all appear to be the deafults usually) If you know that you want to accept all the changes, click the arrow next to Accept Change, and then click Accept All Changes in Document.
If you want to do anything more subtle like accept some of the changes then check the full MS online instructions.