>Is there any way to access a DataReport (control/variable) that you have place on your report Ex: lblTotal = 200 ???

Sure you can but it is a bit tricky! The syntax is:
datareport1.Sections(2).Controls("Label1").caption = 200

A good way to find out in which section is your control is to put the Stop statement in your DataReport's Activate event. Once there open the Locals window (from the View menu) and inspect your datareport.