Yes!

As of our launch in September 2008, Annotate only worked on computers running Microsoft Word 2007. We anticipate launching a version of Annotate for Word 2003 in the fall of 2008, but we received numerous emails from educators frustrated that a Word 2003 version wasn't available.

The Ribbon interface that is new to Word 2007 is the first major change to Word in many, many years. Most users find it daunting at first (where did my commands go?), but quickly get used to the new arrangement. Because features are grouped by their larger function, Word 2007 can be considerably easier to use than previous versions. The Annotate Ribbon integrates seamlessly with the Word 2007 user interface, and we recommend considering upgrading if you have the opportunity (many schools offer upgrades to teachers for free).

That said, Word 2003 works just fine, most people already have it. So we worked hard through the first couple of weeks of October to develop a Word 2003 version, which in some ways is superior to the Word 2007 version (hot-keys, for one reason).

So check out Annotate for Word 2003!