I have the Jasper distribution. As near as I can tell from the post that you quoted, this merely starts an empty database server, but there is no default database AFAIK. WHen I create the db source in iReports after running the HSQLDB server, I can click the "Test" button and iReports detects the server OK, but the next step in the manual is to enter "Select * from customers" and I get a table not found error.