I think it should be a simple report. It is simple in MS Reporting Services, but MSRS doesn't allow you to click thru a row in a grid to the underlying folder.
The grid gives a detail view of the underlying business object: mainly folder names and a status field. The pie chart gives a summary view: count by status. However, the first thing is that I don't see how to do a row count in the chart. It forces me to choose one field for the x- and one for the y-axis. So I create a sceond BO, a summary view on the first which gives two columns, status & count.
Neither the chart, nor the grid, lets me choose the business object. When I have two BOs in the report, all of the fields in both the grid and the chart come from the same BO!!! I need to populate the grid from the detail BO and the chart from the summary BO.