Michael,Use a good ftp client (Filezilla for example) and connect to the ESRI_RiverHydraulics site--ftp.esri.com, use login name of RiverHydraulics and password of river.1114Alternatively from a web browser you can browse toftp://RiverHydraulics:river%2E1114@ftp.esri.com/ArcHydroOnce on the ftp server, the tutorials as PDF are located in the directory /ArcHydro/Doc/ArcHydro2_0Data for the tutorials are in the directory /ArcHydro/Data/Tutorial/2.0This assumes you wanted ArcHydro 2.1 for ArcGIS 10, for ArcGIS 9.3.1 you'll need to use the ArcHydro 1.4 release and those tutorials found in the same directory paths.Stuart