However, they'll not be configured by default installation procedures.
Here are steps to use them:
1. download the apache source files, and upload it to linux server.
2. go to existing apache bin directory, run the following commands:
sudo ./apxs -c /tmp/apache/httpd-2.0.64/modules/loggers/mod_logio.c
sudo ./apxs -i -a -n mod_logio /tmp/apache/httpd-2.0.64/modules/loggers/mod_logio.la
3. change the httpd.conf file and make sure the module is loaded and the logging format is changed.