Using ArcGIS 9.3 and server enterprise advance 9.3. I�??m trying to publish a a Geoprocessing service in a web app that allows the user to add points to a map using different coordinate systems. I built it with model builder and it works fine in ArcMap. I published the mxd with the tool layer and it seems to work fine but it doesn�??t display. I am sure it is not a problem with writing permissions because I have a buffer tool running perfectly. Could anyone give me a hand? In the link you can find a pdf with the model http://dl.dropbox.com/u/82419723/coord_model.PDF