Actually, I do have a query. It is embedded in the recordsource of the report. You can write that easily enough because if you click in that property, you should see an elipsis (...) next to it. Then, if you click it you get the QBE grid where you can create a query just like you're used to. However, the difference is, that when you have it written, you don't click the save button, but just close the query window and then click the YES button. THEN you can click the save button.
It doesn't matter how many tables you use to get it like I did, but what you will need to do is to go to VIEW > SORTING AND GROUPING to see how I made it do what I did and what "Group Headers" I made appear.