Hello Massimo, and thanks very much for your answer and your time.
Now that I understant your intention, I can tell you that I did these actions before, but when I stand on the virtual data source that i created, there is no an 'import' in the popup menu that appears (while there is such an 'import' on a simple, not virtual, data source. So finnally I do not have this data source available as a 'Data Adapter' in the repository view, and hence I do not have it either in the list of available data adapters when I try to define a new report.
Maybe I miss something - so I'll be happy if you can add me on this.
By the way, I couldn't open the pbg you attached.
Thanks again,
Anat.