|I suggest you consult the documentation for the (Sql Server / Visual Studio) Reporting Services and do one of the "walk-throughs".
That will take you through:
1) Starting the report designer / builder
2) Specifying a data source (I.e. database tables)
3) Selecting records
4) Fields to report on
8) Parent-child reporting
Reporting Services Tutorials (SSRS)[^]
Once you have something going, you can ask more specific questions.