RewriteEngine on

RewriteCond %{REQUEST_URI} !^admin/
RewriteCond %{REQUEST_URI} !^redirect/
RewriteCond %{REQUEST_URI} !^include/

RewriteRule ^gary/tmp/[A-Za-z]+/[A-Za-z]+/?$ /gary/tmp/subcategory.php
RewriteRule ^gary/tmp/[A-Za-z]+/?$           /gary/tmp/maincategory.php