Office 2007 Addin (Ribbon Bar Launcher)

I need an addin for Microsoft Word 2007 that can create a new Ribbon Bar, add four sections to the bar, and then multiple items to each section.? When an item is clicked I need it to call a method in a macro file.? Basically, I have a macro file that performs a host of activities that was made for Office 2003.? I'm not ready to rewrite all of this work at this time but I want to take advantage of the Ribbon UI in Office 2007.? So I would like to simply have an addin create the Ribbon UI, load the existing macros file, and be able to call the various methods (or sub routines as they are called in WordBasic) within the macro file.