If any of the reports that query the Datamart are failing, please ensure the JNDI data source has been created on the Application Server. Please ensure that the data source points to a populated Datamart. See instructions within the BIRT Developer guide for further details.
In terms of features provided by the BIRT infrastructure when viewing BIA reports, it is important to note that there are 3 distinct environments, each of which has it own has it's own dependencies.