htaccess in a directory under one with another htaccess

[thomas Armstrong <tarmstrong@xxxxxxxxx>]

Hi.

On my Apache Server, I have this structure to host a website under '/' and a WordPress blog under '/myblog' directory:

--- root_directory/.htaccess

--- root_directory/php_stuff

--- root_directory/myblog/.htaccess

--- root_directory/myblog/php_wp_stuff

Within 'root_directory/.htaccess' file I have several RewriteRules:

--------

RewriteRule ^item/([^/]+)/ /item.php?label1=$1 [L]

RewriteRule ^([^/]+)/([^/]+)/$ /category.php?label1=$1&label2=$2 [L]

-----------------------

which work with

http://www.example.com/item/book-10003/ and

http://www.example.com/science/maths/

However, if I try to access

http://www.example.com/myblog/ or

http://www.example.com/myblog/hello-world/

I got a 404 error. So I modififed the .htaccess:

------------------

RewriteRule ^myblog - [L,NC]

RewriteRule ^item/([^/]+)/ /item.php?label1=$1 [L]

RewriteCond %{REQUEST_URI} !^/myblog/

RewriteRule ^([^/]+)/([^/]+)/$ /category.php?label1=$1&label2=$2 [L]

-------------------

I tried to avoid 'myblog' directory to be ruled by the 'RewriteRules'. However, it works with

http://www.example.com/myblog/

but not with http://www.example.com/myblog/hello-world/

What am I doing wrong? I also tried by adding these lines at the bottom of .htaccess, but I does not work:

--------------

RewriteBase /myblog/

RewriteRule ^index\.php$ - [L]

RewriteCond %{REQUEST_FILENAME} !-f

RewriteCond %{REQUEST_FILENAME} !-d

RewriteRule . /myblog/index.php [L]

--------------------

Any tip is welcome. Thank you very much.