.net - Subreport With Query Inserted Into Main Report?

I have a crystal report with a bunch of parameterized fields that are being filled by code and displayed through CRViewer. I need to add a few sections in here to execute a query to return a dataset and display this in the same report. I am not sure if the best way to do this with a subreport. I am trying to add a subreport and then set the datasource of the subreport to my dataset, but I cannot get it to work.

Lets say there is a customers table. I have FirstName LastName as parametirized fields displayed on the form along with address and basic customer information.

I want to place a subreport showing all orders this customer has made on the SAME report. The is an association table with multiple orders possible.

The report is being placed in a class that can be called by a VB.NET app. Therefore I cannot create the dataconnection for the subreport in the UI (or maybe I can and pass params later).

I am successfully populating the parameterized field by doing the following:

Dim myRpt As New RunReport.RunReport
myRpt.Load("myReport.rpt")
'Set Labels

[Code]....

This will be one report I just need to display the subreport section to handle all possible orders.