Excel 2002 cannot represent data in all three dimensions: x, y, and z, when the data displayed along the x-axis needs to be a stack of areas.

Can this be done today with Excel 2007?

IF NOT - is there a plugin from someone that can do this?

Note: The 'so-called' 3D stacked area chart offered by my Excel is actually just 2D with a shadow box effect behind the one set of areas.