I followed your excellent howto.
When starting apache2 it drops out with
"Syntax error on line 1 of /etc/apache2/conf.d/ox.conf:
Invalid command 'JkWorkersFile', perhaps misspelled or defined by a module not included in server configuration"
Somehow mod_jk is not loaded by apache2, but:
libapache2-mod-jk (v.1.2.18-3etch1) is installed and mod_jk.so is in /usr/lib/apache2/
JkWorkersFile in ox.conf is pointing to /etc/libapache2-mod-jk/workers.properties.
Am I missing something? Is the module to be included somewhere in apache-configs?
 there is no jk.load in /etc/apache2/mods-enabled/
how do I get it? [/edit]