I've successfully exported a Revit architectural file to a 3D Architecture drawing using Revit Structure 2009. I don't have Revit Architecture, but I've got to imagine that the export settings are the same. I'm not sure how much of that information is retained. I.E.... I don't know if a brick wall with an 1-1/2" air gap with 5/8" gyp board will come across the same in AutoCAD Architecture. But I do know that a wall from Revit will come in as as AutoCAD Architecture wall... same for doors, windows, roof slabs, floor/ceiling slabs.