Documentation on how to configure prompts

Hello and sorry for this obvious questions, but after 2 days of searching,
I'm unable to find this info.

1. How do you configure prompts that use prompt files (.wav, .au, etc).
2. How do you configure the initial prompt (for example) to play multiple
prompt files (eg, hello.wav followed by how_are_you.wav)
3. Is there a user's guide that lets me know what all I can put in the
config file for RDCs?
4. Do I have to use a config file to configure prompts, or can I do all the
configuration in the JSP tags itself?

The examples provided with RDCs just use TTS and the ones that use a config
file are also not helpful.
Thanks for help...much appreciated.

Charles