This is a great add-on. You should have a website to with link and manual. I'm sure it will make this add-on popular! I got it working with MikTex on window7 and MS word 2010.
Very good project! The tool is quite easy to use and it allows the opportunity of changing equations after they have been created. However, in my opinion, the documentation should be slighly improved (for example it is not clear for what it is used the second column when inserting an equation) and it should clearly written that the equation shall not be inserted into the box that pops up when pressing the "\sqrt icon" (or by issuing Alt+E). LaTeX element shall be only included in the box obtained when clicking on "LaTeX" icon (or when issuing ALT+T command). However, for all the rest, very amazing macro!
Fast and simple.