Including multiple layouts in one ArcGIS Desktop project

Unfortunately and unbelievably to me, it's not possible with ArcMap out of the box. There may be some code floating around to make multiple layouts possible, but I haven't ever found any.

I know this question is about ArcGIS 9.3, but someone mentioned what is possible in ArcGIS 10. ArcGIS 10 has some new functionality that is similar to the 9.x DSMapbook developer sample that allows you to create a series of map pages, layouts, and map books. ArcGIS 10 calls this "Data Driven Pages."

Here are some intro help topics about Data Driven Pages: http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#/What_are_Data_Driven_Pages/00sr00000006000000/ http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#/Building_map_books_with_ArcGIS/00s90000002s000000/

There's a plugin called dsmapbook that allows you to create multiple layouts, but it's not totally unconstrained, or that straightforward to use. I haven't used it for a while but it only seems to be available as a developer sample, for example here: http://edndoc.esri.com/arcobjects/9.0/samples/cartography/map_production/dsmapbook/dsmapbook.htm

I can confirm that it works with Arcview 9.3 though.