Even with a minimal install of the Enterprise Architect or Professional Versions, you should have gotten the macros. They are installed in \My Documents\Visual Studio Projects\VSMacros71 for Visual Studio .NET 2003. TO access them, select the View | Other Windows | Macro Explorer menu. If you still don't see them, I would do a repair installation by going into the Add Remove Programs, double clicking on the Visual Studio entry and when the Visual Studio installation pops up, select repair.
This was first published in June 2004