Hi,
If i understand well, you couldn't run any reports on the server side yet? Is that correct?
As a first step, we will try to determine if the report server is correctly configured.
When editing a shared data source on the server using report manager web interface, can you confirm that "Enesys SharePoint Lists" is available in the "Connection type" Drop Down list as in the following image?
If not, it means that ERSDE dll is not even recognized by RS Server. Please double check server configuration.
If it's available, please send me your server configuration files by email at support@enesys.fr so that I can have a look.
Regards,