Hi there,

Based on the error message you provided, it seems you are likely using Firefox 3.  The new version of Firefox tries to prevent users from using a self-signed certificate.  This certificate can be accepted into the browser, as the connection is still secure, it's just not a purchased SSL certificate (hence, it's self-signed).  This occurs because Lunarpages uses self-signed certificates instead of using certificates from a major name.  The connection is still secure and you can continue to operate using this without worry.

There is a link on the page with the error message that will allow you to add the SSL certificate to your browser.  You can simply click that then click the button to add the certificate.

Here is a link to more information on this:
http://www.lunarforums.com/index.php/topic,37010.0.html

Self Signed certificates:
http://www.lunarforums.com/index.php/topic,33708.0.html

Hope this helps.

What browser are you using?