Options +FollowSymlinks
RewriteEngine on

# If not working, uncomment and correctly fill the line below:
RewriteBase  /

RewriteCond    %{REQUEST_FILENAME}  -d
RewriteRule    ^(.+[^/])$           $1/  [R]

RewriteRule ^admin$ admin/index.php
RewriteRule ^admin/$ admin/index.php

RewriteRule ^links/([a-z]+)/([0-9]+)/?$ link.php?action=$1&id=$2
RewriteRule ^links/([0-9]+)/?$ link.php?id=$1

RewriteRule ^thread/([0-9]+)/?$ comments.php?id=$1
RewriteRule ^thread/([0-9]+)/([0-9]+)/?$ comments.php?id=$1&page=$2

RewriteRule ^([0-9]+)/?$ index.php?action=displaycat&catid=$1
RewriteRule ^([0-9]+)/([0-9]+)/?$ index.php?action=displaycat&catid=$1&page=$2

RewriteRule ^([-_/\+A-Za-z0-9]+)$ index.php?action=displaycat&catname=$1 

RewriteRule ^links/([-_/\+A-Za-z0-9]+)-([0-9]+).html$ link.php?action=detail&id=$2