Modification du fichier .htaccess

Bonjour,

J'ai vu dans cet article Qu'est-ce que YACS 7.6 ? qu'il fallait modifier manuellement le fichier .htaccess pour profiter de l'URL Rewriting.
Par contre je ne suis pas sûr des lignes qu'il faut dé- commenter !
Pourriez vous m'indiquer les manips à faire sur ce fichier pour profiter de l'URL rewriting.
Merci d'avance.
Pour info mon fichier .htaccess a cette tête là :

#
# This file adds nice features to YACS
#
# Uncomment directives below depending of your needs.
# Do this one block at a time.
# Then load the main index page of your YACS server.
# If you experiment a 500 Internal Server Error then
# comment out every directive below or suppress this file.
#
# More support at http://www.yetanothercommunitysystem.com/
#
# All lines related to .html and .xml extensions are legacy, related to
# YACS version 7.6alpha. They should be removed by Q3, 2007.

# ask Apache to redirect to pretty error pages
#
ErrorDocument 401 /yacs/error.php?error=401
ErrorDocument 403 /yacs/error.php?error=403
ErrorDocument 404 /yacs/error.php?error=404

# set the default handler to index.php
#
DirectoryIndex index.php

# disable directory browsing below this directory
#
Options -Indexes

# is a pre-requisite for acceptance of RewriteRule directives in mod_rewrite
#
Options FollowSymLinks

# rewrite URLs
#
# ensure the engine has been activated
#
##	RewriteEngine on
	# used to test the rewriting function in control/configure.php
	#
##	RewriteRule rewrite_test/([0-9]+)$  control/test.php?a=$1  [L]
##	RewriteRule rewrite_test$ control/test.php	[L]

	# remove the cosmetic tail .xml added to feeds in normalized_url()
	#
##	RewriteRule ([a-zA-Z]+-feed)/([0-9]+).xml$  $1/$2

	# provide pretty references to actions
	#
##	RewriteRule actions/([0-9]+).html$  actions/view.php?id=$1  [L]
##	RewriteRule actions/([0-9]+)$  actions/view.php?id=$1  [L]
##	RewriteRule action-([a-zA-Z_]+)/([0-9]+)$  actions/$1.php?id=$2  [L]

	# provide pretty references to articles
	#
##	RewriteRule articles/([0-9]+)-(.+).html$  articles/view.php?id=$1  [L]
##	RewriteRule articles/([0-9]+)-(.+)$  articles/view.php?id=$1  [L]
##	RewriteRule articles/([0-9]+).html$  articles/view.php?id=$1  [L]
##	RewriteRule articles/([0-9]+)$  articles/view.php?id=$1  [L]
##	RewriteRule article-([a-zA-Z_]+)/([0-9]+)-(.+)$  articles/$1.php?id=$2  [L]
##	RewriteRule article-([a-zA-Z_]+)/([0-9]+)$  articles/$1.php?id=$2  [L]

	# provide pretty references to categories
	#
##	RewriteRule categories/([0-9]+)-(.+).html$  categories/view.php?id=$1  [L]
##	RewriteRule categories/([0-9]+)-(.+)$  categories/view.php?id=$1  [L]
##	RewriteRule categories/([0-9]+).html$  categories/view.php?id=$1  [L]
##	RewriteRule categories/([0-9]+)$  categories/view.php?id=$1  [L]
##	RewriteRule category-([a-zA-Z_]+)/([0-9]+)-(.+)$  categories/$1.php?id=$2  [L]
##	RewriteRule category-([a-zA-Z_]+)/([0-9]+)$  categories/$1.php?id=$2  [L]

# provide pretty references to comments
#
##	RewriteRule comments/([0-9]+).html$  comments/view.php?id=$1  [L]
##	RewriteRule comments/([0-9]+)$  comments/view.php?id=$1  [L]
##	RewriteRule comment-([a-zA-Z_]+)/([0-9]+)$  comments/$1.php?id=$2  [L]

# provide pretty references to dates
#
##	RewriteRule dates/([0-9]+).html$  dates/view.php?id=$1  [L]
##	RewriteRule dates/([0-9]+)$  dates/view.php?id=$1  [L]
##	RewriteRule date-([a-zA-Z_]+)/([0-9]+)$  dates/$1.php?id=$2  [L]

# provide pretty references to decisions
#
##	RewriteRule decisions/([0-9]+).html$  decisions/view.php?id=$1  [L]
##	RewriteRule decisions/([0-9]+)$  decisions/view.php?id=$1  [L]
##	RewriteRule decision-([a-zA-Z_]+)/([0-9]+)$  decisions/$1.php?id=$2  [L]

# provide pretty references to feeds
#
##	RewriteRule feeds/articles.xml$  articles/feed.php  [L]
##	RewriteRule feeds/articles$  articles/feed.php  [L]
##	RewriteRule feeds/atom.xml$  feeds/atom_0.3.php  [L]
##	RewriteRule feeds/atom$  feeds/atom_0.3.php  [L]
##	RewriteRule feeds/comments.xml$  comments/feed.php  [L]
##	RewriteRule feeds/comments$  comments/feed.php  [L]
##	RewriteRule feeds/files.xml$  files/feed.php  [L]
##	RewriteRule feeds/files$  files/feed.php  [L]
##	RewriteRule feeds/opml.xml$  feeds/describe.php  [L]
##	RewriteRule feeds/opml$  feeds/describe.php  [L]
##	RewriteRule feeds/rss.xml$  feeds/rss_2.0.php  [L]
##	RewriteRule feeds/rss$  feeds/rss_2.0.php  [L]
##	RewriteRule feeds/(.+).xml$  feeds/$1.php  [L]
##	RewriteRule feeds/(.+)$  feeds/$1.php  [L]
# provide pretty references to files
#
##	RewriteRule files/([0-9]+)-(.+).html$  files/view.php?id=$1  [L]
##	RewriteRule files/([0-9]+)-(.+)$  files/view.php?id=$1  [L]
##	RewriteRule files/([0-9]+).html$  files/view.php?id=$1  [L]
##	RewriteRule files/([0-9]+)$  files/view.php?id=$1  [L]
##	RewriteRule file-([a-zA-Z_]+)/([0-9]+)-(.+)$  files/$1.php?id=$2&action=$3  [L]
##	RewriteRule file-([a-zA-Z_]+)/([0-9]+)$  files/$1.php?id=$2  [L]

	# provide pretty references to images
	#
##	RewriteRule images/([0-9]+).html$  images/view.php?id=$1  [L]
##	RewriteRule images/([0-9]+)$  images/view.php?id=$1  [L]
##	RewriteRule image-([a-zA-Z_]+)/([0-9]+)$  images/$1.php?id=$2  [L]

	# provide pretty references to locations
	#
##	RewriteRule locations/([0-9]+).html$  locations/view.php?id=$1  [L]
##	RewriteRule locations/([0-9]+)$  locations/view.php?id=$1  [L]
##	RewriteRule location-([a-zA-Z_]+)/(.+)$  locations/$1.php?id=$2  [L]

	# provide pretty references to sections
	#
##	RewriteRule sections/([0-9]+)-(.+).html$  sections/view.php?id=$1  [L]
##	RewriteRule sections/([0-9]+)-(.+)$  sections/view.php?id=$1  [L]
##	RewriteRule sections/([0-9]+).html$  sections/view.php?id=$1  [L]
##	RewriteRule sections/([0-9]+)$  sections/view.php?id=$1  [L]
##	RewriteRule section-([a-zA-Z_]+)/([0-9]+)-(.+)$  sections/$1.php?id=$2  [L]
##	RewriteRule section-([a-zA-Z_]+)/([0-9]+)$  sections/$1.php?id=$2  [L]

	# provide pretty references to servers
	#
##	RewriteRule servers/([0-9]+).html$  servers/view.php?id=$1  [L]
##	RewriteRule servers/([0-9]+)$  servers/view.php?id=$1  [L]
##	RewriteRule server-([a-zA-Z_]+)/([0-9]+)$  servers/$1.php?id=$2  [L]

	# provide pretty references to tables
	#
##	RewriteRule tables/([0-9]+).html$  tables/view.php?id=$1  [L]
##	RewriteRule tables/([0-9]+)$  tables/view.php?id=$1  [L]
##	RewriteRule table-([a-zA-Z_]+)/([0-9]+)$  tables/$1.php?id=$2  [L]

	# provide pretty references to users
	#
##	RewriteRule users/([0-9]+)-(.+).html$  users/view.php?id=$1  [L]
##	RewriteRule users/([0-9]+)-(.+)$  users/view.php?id=$1  [L]
##	RewriteRule users/([0-9]+).html$  users/view.php?id=$1  [L]
##	RewriteRule users/([0-9]+)$  users/view.php?id=$1  [L]
##	RewriteRule user-([a-zA-Z_]+)/([0-9]+)-(.+)$  users/$1.php?id=$2  [L]
##	RewriteRule user-([a-zA-Z_]+)/([0-9]+)$  users/$1.php?id=$2  [L]

	# provide pretty references to versions
	#
##	RewriteRule versions/([0-9]+).html$  versions/view.php?id=$1  [L]
##	RewriteRule versions/([0-9]+)$  versions/view.php?id=$1  [L]
##	RewriteRule version-([a-zA-Z_]+)/([0-9]+)$  versions/$1.php?id=$2  [L]

	# allow nice selector  go/keyword -> go.php/keyword -see codes/codes.php
	#
##	RewriteRule go/(.+)$ go.php/$1

	# provide pretty references to other top-level scripts
	#
##	RewriteRule about.html$  about.php  [L]
##	RewriteRule about$  about.php  [L]
##	RewriteRule cron.html$  cron.php  [L]
##	RewriteRule cron$  cron.php  [L]
##	RewriteRule help.html$  help.php  [L]
##	RewriteRule help$  help.php  [L]
##	RewriteRule privacy.html$  privacy.php  [L]
##	RewriteRule privacy$  privacy.php  [L]
##	RewriteRule search.html$  search.php  [L]
##	RewriteRule search$  search.php  [L]

	# translate authentication data if PHP runs as CGI - see agents/feed.php
	#
##	RewriteRule .* - [E=REMOTE_USER:%{HTTP:Authorization},L]



#download palm files
#
##AddType application/octet-stream .prc .pdb