Thanks for your post. There are a couple of options to help you out. The user manual contains a number of worked examples in Section 10. These examples use pre-prepared data files which are provided with the RORB download. If you are able to work through these examples they will provide a useful basic introduction into operation of the program.
As well as this, we have just advertised a RORB training course to be run in Melbourne on December 12 and 13. Day 1 of this course in particular focuses on the basics of developing catchment files, storm files and running the model. If you’re able to get along to this, you’d come away armed with all the knowledge you need to set up and run your own models.
Hope this helps.