CalWeb Internet Services, Inc.

A self-signed certificate is signed by its own creator. Because of this, the certificate is not trusted by web browsers. Users can continue, but have to bypass a security message. A self-signed certificate is typically used for testing or a small application that is specific to one purpose and the owners of the site determines rather then spending $$$ on "trusted" cert, the users going to the website can instead select to trust the cert in their web browser.

• Visit the web site in Internet Explorer.

• Click on Continue to this website (not recommended)
• Click on Certificate Error in the red colored address bar

• Click on View certificates
• In the Certificate dialog, press Install Certificate
• In the Certificate Import Wizard, click Next
• On page 2 of the wizard, select Place all certificates in the following store and click Browse;
• In the Select Certificate Store dialog, select Trusted Root Certification Authorities, click OK
  
• In the wizard, click Next, click Finish
• If a security message pops up, choose Yes

Trust your own certificate in Firefox

This is much easier. Visit the web site and select 'Permanently accept this certificate' when Firefox pops up a window.