http://webhelp.esri.com/arcgisserver/9.2/dotNet/manager/applications/configuring_tasks.htm
The Editing task provides a suite of tools for Web-based editing of features and attributes in ArcSDE geodatabases. This task requires that your application contain a map service accessed through an ArcGIS Server
Local connection that includes at least one layer from an
ArcSDE geodatabase. Shapefiles, personal geodatabase, and file geodatabase layers are not editable....
Editing with pooled and non-pooled services
Prior to ArcGIS Server 9.2, Service Pack 2, the Editing task was only available with non-pooled map services. At Service Pack 2, you also have the option to use the Editing task with pooled map services. When you use pooled services, your server can support a larger number of concurrent users because the server does not have to create a dedicated service instance for each user during his or her application session. Instead, users can share service instances from a pool. Before you implement the Editing task with a pooled service, you should be aware of the following:
Editing of pooled services is only available with
non-versioned data.
You cannot undo or redo edits when you edit a pooled service.
Conflicts are always resolved in favor of the edit session, meaning that the most recent edit will overwrite any previous edits performed on the same feature.
Ну, и следовательно, ежели юзерам приспичит дергать одновременно за один объект, то зависшие блокировки в SQL-сервере снимать нужно админу.
Т.е. сначала поредактируйте просто в ArcGIS+SDE в таком режиме, а потом уже пробуйте развлекаться с интернет.
