What versions of dojo will work with ArcGIS Server 10? We have a customized app that was built with dojo 1.1. We are now trying to update the app to use dojo 2.1 but are finding that some of the objects are not available (as we can find) in the latest version. For example, we cannot find "dijit.form.FilteringSelect" in dojo version 2.1. Any suggestions?