Your *-ds.xml file looks ok to me. Since you aren't using a login module you don't need to modify login-config.xml.
The quick start guide is pretty irrelevant now.
Scott recently posted some newer directions for 3.2.1, I think on the sourceforge downloads page.
Are the mbeans for the resource adapter and the connection factory deployment visible in jmx-console and are they started? What does the log say?