Resource Usage Reporting by Summary

Not sure exactly what you are looking for, but try this:
-Click on >View, >Resource Sheet
-Click on >Window, >Split
-Click anywhere in the bottom pane, the click on >View, >Resource Graph
-Now by clicking on the various resource names in the top pane, you will get to see their allocation in graphical format in the bottom pane.

Tweaking the view:
1. You may want to change the timephased view in the graph. I prefer to examine resource allocations at a month period. To change the time period:
-Click anywhere in the bottom pane
-Click on the Zoom Out magnifying glass (may be a hidden toolbar icons)
2. This graph by default comes in displying Peak Units. I prefer to examine Work. To see the Work graph;
-Right click in the timephased area of the bottom graph and click on Work
-I also like to show the availability line in this graph.
-Right click in the timephased portion again
-Click on Bar Styles
-Check the Show Availability Line

Hope this helps!

J Black