settings for adding Sites

carcak[CodePlex]
Hello,

I'm a bit lost with the initial installation of Hydroserver settings for adding Sites.

I have a site on the southern hemisphere, close to the equator. I have the Lat/Long coordinates. 0°44'32.39quotS / 90°18'18.17quotW. Now, I don`t know how to change them to x/y local coordinates.

I found the NDSF Coordinate Conversion Utility but there, in order to change a Latitude/Longitude to X/Y Coordinates, I have to enter the Origin of XY coordinate. Let´s say I do, the Hydroserver form doesn't ask me what that xy origin is, so the system wouldn't
be able to correctly allocate my site.

Furthermore, on the Local Projection ID: I don't see any link that refers to a table with the meaning of each projection ID, so I can't fund one that is appropriate for the southern hemisphere zone 15...

I find the information on the little questionmarks of each fiel insuficient.

Can anybody help me?

Thanks!!