DOCBOOK-APPS: building with ant

I'm trying to build with Ant and get

java.lang.NoClassDefFoundError: com/icl/saxon/StyleSheet

but I do have the Saxxon.jar in my classpath.

I probably don't have my catalog set up properly though.  Does anyone know
if an incorrectly set up catalog would give me that error or do I really
have classpath issues?

Also, in the article on ant at http://www.dpawson.co.uk/docbook/ant.html,

It suggests using
<pathelement path=".."/> <!-- for catalogManager.properties -->

I'm green and don't know where ".." is (under the current directory?) so I
put mine in a catalogs directory  <pathelement
path="${UsersGuide.Home}/catalogs"/>

Next, when building a docbook.cat for sdocbook, do I just add the things in
the distribution?  sdocbookref-custom and sdocbook-custom would be left out
wouldn't they?  There aren't any ISO entity sets either.  Does that mean
none in the docbook.cat?

Finally, the CatalogManager.properties file has:

catalog-class-name=com.sun.resolver.Resolver

Mine is an org.apache.xml.resolver.Resolver
I assume I need to change this to reflect the apache origin as opposed to
being from Sun

Anyfeed back would be most appreciated.

Shawn