Help With Furl

<?php

$forum_rule = array(
'(.*?)-([0-9]+).html$',
'$forum_title-$forum_id.html',
'showforum=$matches[2]'
);

$topic_rule = array(
'(.*?)-([0-9]+).html$',
'$forum_title-$topic_id.html',
'showtopic=$matches[2]' );

$showuser_rule = array(
'(.*?)-([0-9]+).html$',
'$user_title-$user_id.html',
'showuser=$matches[2]' );

$topic_view_getlastpost = array(
'LAST-(.*?)-([0-9]+).html$',
'LAST-$topic_title-$topic_id.html',
'showtopic=$matches[2]&view=getlastpost' );

$topic_view_getnewpost = array(
'NEW-(.*?)-([0-9]+).html$',
'NEW-$topic_title-$topic_id.html',
'showtopic=$matches[2]&view=getnewpost' );

$topic_multipage_rule = array(
'(.*?)-([0-9]+)-([0-9]+).html$',
'$topic_title-$topic_id-$topic_st.html',
'showtopic=$matches[2]&st=$matches[3]'
);

$forum_multipage_rule = array(
'(.*?)-([0-9]+)-([0-9]+).html$',
'$forum_title-$forum_id-$forum_st.html',
'showforum=$matches[2]&st=$matches[3]'
);
?>

<IfModule mod_rewrite.c>
RewriteEngine on
RewriteRule ^sitemapx.xml(.*) forums/modules/minerva/tools/sitemap.php$1 [L]
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . forums/index.php [L]
</IfModule>