upgrade to 2008 SBS

http://technet.microsoft.com/en-us/library/sbs-2008-2003-migration(WS.10).aspx

 

http://www.microsoft.com/downloads/details.aspx?FamilyID=52b7ea63-78af-4a96-811e-284f5c1de13b&displaylang=en

 

http://uksbsguy.com/blogs/doverton/archive/2008/07/02/how-to-migrate-from-sbs-2003-to-small-business-server-2008-sbs-2008.aspx

 

http://uksbsguy.com/blogs/doverton/archive/2009/01/10/How-to-upgrade-migrate-from-SBS-2003-to-SBS-2008-on-the-same-system-without-using-a-swing-migration.aspx