Over on LordKingSquirrel.com, there's a two-part series on integrating your scripts with the ArcWeb web services systems.
Creating mapping applications for the Web with ArcWeb Public Services can be daunting at first, so here are some helpers to get you started. Part of the code used here comes from Andrea Rosso’s fine example.
In part one, they help you set it all up, giving a little background on the SOAP protocol you'll use, and then moving into making the actual map (and displaying it).
In part two, they build on that foundation and show you how to add points to the map via latitude and longitude...




