Mine

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /blog/
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /blog/index.php [L]
#below is for the main blog cats..
RewriteCond !^/blog/index.php$    RewriteRule ^/([^/]+) /blog/index.php?n_location=$1 [L,QSA]
RewriteCond !^blog/index.php$    RewriteRule ^([^/]+) /blog/index.php?n_location=$1 [L,QSA]
</IfModule>

# END WordPress