RewriteEngine On

RewriteRule ^latest-updates/([0-9]+)/$ index.php?url=latest-updates/$1/
RewriteRule ^latest-updates/$ index.php?url=latest-updates/

RewriteRule ^most-popular/([0-9]+)/$ index.php?url=most-popular/$1/
RewriteRule ^most-popular/$ index.php?url=most-popular/

RewriteRule ^top-rated/([0-9]+)/$ index.php?url=top-rated/$1/
RewriteRule ^top-rated/$ index.php?url=top-rated/

RewriteRule ^categories/$ index.php?mod=cats
RewriteRule ^categories/([a-zA-Z0-9_-]+)/$ index.php?url=categories/$1/
RewriteRule ^categories/([a-zA-Z0-9_-]+)/([0-9]+)/$ index.php?url=categories/$1/$2/

RewriteRule ^videos/([0-9]+)/([a-zA-Z0-9_-]+)/$ index.php?mod=view&url=$1/$2/