"If you choose to install it [the ArcHYDRO], you only need to run ArcHydroTools.msi after installing ArcGIS10 (from the ArcHydro/setup10/220.127.116.11 or similar version directory). ApFramework will be installed as well."
So, I went today to the most recent version I found there, the "ftp://ftp.esri.com/ArcHydro/Setup10/18.104.22.168", downloaded ArcHydroTools.msi and run it. The installation was apparently OK, no error messages. But then I started my ArcGIS 10, clicking in the ArcMap icon, as usual, and nothing has changed! I CAN'T FIND WHERE THE ARCHYDRO TOOLS ARE, NOR EVEN USING THE EXPLORER, LOOKING INTO THE ESRI OR OTHER FOLDERS IN MY COMPUTER. Did I do something wrong? How can I be sure it's really installed in my computer and how can I find the ArcHYDRO tools if they have been installed?
I think the answer is probably something obvious, but I'm not good in installing things and I'd appreciate if anyone could help me. Thanks!