You may want to add an .htaccess file like this to the directory as well to prevent people from accessing vital areas of your store. Good luck!
Code:
# .htaccess by Konig (06/07/2004)
Options -Indexes
DirectoryIndex index.php
# block all files in uppercase letters (i.e. VERSION)
RedirectMatch gone ^/[A-Z].+$
# block all smarty templates
RedirectMatch gone ^/.*\.tpl$
# block all .php and .pl files in the root directory except for index.php
# remove |pl if you want to execute patch.pl, otherwise, leave alone
# example: install.php, config.php just in case if there is an exploit someday
# which can reveal the source code of php files
RedirectMatch gone ^/[^/]*([^index])\.(php|pl)$
# block the entire log directory
ReDirect gone /log
# block all .log (log files), .sql (sql dump/export) and .conf (config files) files
# in case some day these files move to another directory
RedirectMatch gone ^.*\.(sql|log|conf)$
# block access to the 'Smarty-*' directory
RedirectMatch gone ^.*Smarty.*$
# block access to /upgrade
Redirect gone /upgrade
# block access to /skin1_original
Redirect gone /skin1_original
# block access to the /sql directory
Redirect gone /sql
# block access to the /shipping directory
Redirect gone /shipping
# block access to the pgp directories
Redirect gone /.pgp
Redirect gone /.pgp.def
