see jboss-j2ee.jar in the client/ dir of your distribution
Deployment descriptors are documented either in their corresponding specifications (ejb, servlet, etc) or as part of the DTD's under the docs/ dir of your distribution.
If you don't specify '-c' then 'default' configuration will be used when you start JBoss.
jboss-j2ee.jar is the jar you want.
"-c all" works for me in 4.0?