There are a couple of ways you can do this.
1. Group by customer. Sort by Order Date descending. Put all of your data in the Customer group header. This is the easiest to set up but if you want order details, you may have to use a subreport to display them.
2. Use a command instead of tables to provide data for your report. Write the SQL so that you only pull the most recent for each customer. You have to know SQL to do this one, although there should be no need for a subreport here.
-Dell