It's hard to find, isn't it? I believe these are the versions (ignoring service packs)
Visual Studio ver 6 = last one before .Net, released in '98
Visual Studio 2002 = ver 7.1, Rainier, 1st .Net ver. retroactively added 2002 to the name, .Net 1.0 -- released Feb02
Visual Studio 2003 = ver 7, Everett, .Net 1.1 -- released early 2003.
Visual Studio 2005 = ver 8 Whidbey, .Net 2.0 & 3.0 -- launch was Nov 2005. No longer called Visual Studio .Net
Visual Studio 2008 = ver 9 Orcas, .Net 3.5 -- released 11/19/2007 as 9.0.21022.8
Visual Studio 2010 = ver 10 Hawaii
next ver. of Visual Studio Team System = Rosario
This will give you more information about build numbers and service packs, but only through .Net 2.0.