URL Get masking with htaccess

Hi all,

I have coded my own directory software that I want to switch over to for Polopony.com. I would like some help on coding the .htaccess as I havn’t been able to get it right.

I am using WordPress 2.9.1 and permalinks scheme /%category%/%postname%/

Here’s what I want to do:
https://polopony.com/polo-directory/polo-club/united-states/minnesota/
should mask to the wordpress url
https://polopony.com/polo-directory/
yet keep the other categories in the url because that’s how the script parses which category they are in.

If that’s not possible, I would like it to mask
/index.php?pagename=polo-directory&url=/polo-club/united-states/minnesota/

Here’s my current .htaccess
<IfModule mod_rewrite.c>
Options +FollowSymlinks
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
RewriteRule SITEURL ./ [L]
</IfModule>

Any help you could provide would be much appreciated.

Thank you =)

Light and Love and Healing to you,
-Patrick Arden McNally