I have the same question.
I have a sales report that I want to chart with drill downs to the orders. Ultimately I am looking for a interactive dashboard without upgrading to Sharepoint Enterprise.
My report asks for a date range ( Months to view ). When I re-used the query, I was unable to pass in the parameters in the box above the query box - there may be a syntax format I was not using. I ended up replacing the @startdate and @endate parameters with actual values. It may be that this is not possible - I do not see any supporting documentation regarding adding parameters. The filters did not work on the query I used.
