ちなみに/usr/local/apache/bin/httpd -l　の結果は

Compiled-in modules:
http_core.c
mod_env.c
mod_log_config.c
mod_mime_magic.c
mod_mime.c
mod_negotiation.c
mod_status.c
mod_include.c
mod_autoindex.c
mod_dir.c
mod_cgi.c
mod_asis.c
mod_imap.c
mod_actions.c
mod_userdir.c
mod_alias.c
mod_rewrite.c
mod_access.c
mod_auth.c
mod_auth_anon.c
mod_usertrack.c
mod_unique_id.c
mod_so.c
mod_setenvif.c
suexec: disabled; invalid wrapper /usr/local/apache/bin/suexec

です。よろしくお願いします。