I was wondering if there is a way to show the progress of the Report Viewer while the viewer is selected to run from a client. I know how it’s done when populating tables and charts during queries. However, with some of the same script being used to generate the report as well as to populate the tables, people can’t tell if the report has finished updating before jumping to hit the PRINT button. 
Never mind, if you add another table to the report page without visiblity and run the same script, you can tie the status of the query for the table to a status bar and it works just fine for the report.
As of 7.5 the report panel has both propertiesLoading and reportLoading properties so you can see when the queries are running and when the report is being generated.