For MS Word 2010 (Office 2010) the procedure is very similar and can probably be followed from this video, but a video specific to Word 2010 is under preparation.
Before following the procedure in this video, you must physically install the Toolkit onto your hard disk. How to do that is described in an earlier video. Please view the appropriate video either the one for Microsoft Windows XP or the one for Vista and Windows 7.
After activating there are videos which show you how to use the Scriptwriters' Toolkit. The actions are similar so you can view those videos in either their Word 2003 or their Word 2007/2010 versions.