Regułka mod_rewrite nie działa

[Necro]

Proszę bardzo:

Options +FollowSymLinks
RewriteEngine on
RewriteBase /
RewriteRule ^$ /index.php [L]
RewriteCond $1 !^(index\.php|install|img|images|scripts|fonts|uploads|css|js|robots\.txt|sitemap\.xml|favicon\.ico)
RewriteRule ^(.*)$ /index.php/$1 [L]
RewriteRule (.*)-(.*)\.html$ wallpapers/show/$2
RewriteRule (.*)-(.*)/$ categories/show/$2
RewriteRule /cat_wallpapers/(.*)-(.*)\.html$ categories/wallpapers/$2