Disclaimer page?

I want to add a disclaimer page before someone Enters my website. But the vshare script is index.php, how can i make the that the disclaimer shows first before visitor enters main page?

Edit .htaccess file

FIND

RewriteRule ^$ index.php

REPLACE WITH

RewriteRule ^$ disclaimer.html

Now upload disclaimer.html to your site. To link to vshare installation, link to http://yourdomain/index.php

that worked great, thank you very much.