I am trying to go through a tutorial on watershed delineation. I believe the tutorial was designed for ArcGIS 9.3 and the compatible version of ArcHydro. I have ArcGIS 10 on my machine and have encountered no problems so far. I did not have ArcHydro, so I just downloaded the latest version (18.104.22.168). This tutorial has steps that suggest there should be "Slope greater than 30," "Slope greater than 30 and facing North," and "Weighted flow accumulation" options on the terrain preprocessing menu. Does anyone know if these options/tools have been removed from the 22.214.171.124 version of ArcHydro, or if they are located elsewhere or named something else? I can't seem to find them. Probably not essential for what I am doing, but may be useful for future reference.