Help! Running DirectAdmin through apache on port 80 for apache 2.2

[XenMax]

Ref: http://help.directadmin.com/item.php?id=84

Question: How this can be done for apache 2.2 (2.2.6 at the moment)? How to load "proxy_module" module?

Thanks,
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According to this thread: http://directadmin.com/forum/showthread.php?t=22181
I can "/usr/sbin/httpd -l" with this result:
-bash-3.00# /usr/sbin/httpd -l
Compiled in modules:
core.c
mod_authn_file.c
mod_authn_default.c
mod_authz_host.c
mod_authz_groupfile.c
mod_authz_user.c
mod_authz_default.c
mod_auth_basic.c
mod_include.c
mod_filter.c
mod_deflate.c
mod_log_config.c
mod_logio.c
mod_env.c
mod_headers.c
mod_unique_id.c
mod_setenvif.c
mod_ssl.c
prefork.c
http_core.c
mod_mime.c
mod_dav.c
mod_status.c
mod_autoindex.c
mod_asis.c
mod_suexec.c
mod_cgi.c
mod_dav_fs.c
mod_dav_lock.c
mod_negotiation.c
mod_dir.c
mod_actions.c
mod_userdir.c
mod_alias.c
mod_rewrite.c
mod_so.c