Thanks Steffen for summing this up.
To be honest, the documentation at [1] applies to JBossWS-CXF 3.x and is now to be replaced by [2] (for current jbossws trunk) and [3] (for version in AS 7.1). The front page at https://community.jboss.org/wiki/JBossWS mentions the JBossWS 4.x doc is served at https://docs.jboss.org/author/display/JBWS . This said, I can probably see if this topic can be better explained.
To give you a bit of history, the jbossws-cxf.xml is basically the leftover of the initial (jbossws-cxf-3.0.x) integration with Apache CXF, when Spring was strictly required. Thanks to the evolution of Apache CXF and due to the need of avoiding depending on Spring, we slowly moved to a new integration allowing cxf based endpoint deployment without the need of going through a spring DD nor a spring application context at all.
Anyway, we kept the option of installing spring and using jbossws-cxf.xml for those needing specific configuration things provided throught spring bean declarations.
So spyhunder99, unless you need to tune specific spring bean things, you can simply avoid bothering creating a jbossws-cxf.xml / cxf.xml descriptor and declare your endpoints in the web.xml (you might not even need that nowadays, with JSR 109 1.3 / Servlet 3).
Regarding the <jaxws:client>, Steffen, I need to check some things first, then I'll reply you in the other thread.
[1] https://community.jboss.org/wiki/JBossWS-StackCXFUserGuide
[2] https://docs.jboss.org/author/display/JBWS/Apache+CXF+integration
[3] https://docs.jboss.org/author/display/AS71/Apache+CXF+integration