Thanks. That, at least, is a source for the grids. But they don't seem to be available in a "one-big-download" format. It looks like I'd have to do them one by one, which since we're talking about several thousand grids, would be a major pain.
Does anyone know of (or have) a mondo zip file with all the .puz files in it, or a database in some other form that already has all the grids loaded into it?