How do I prevent the browser warning when using a secure link?
Once you have created a secure link to your form or survey, any other linked content in your survey or form that is not hosted on a secure server may result in an error message, similar to the one below, stating that your secure site is hosting unsecure content.
To avoid this error, you must host images and other linked content on a secure Web server (the URL will begin with https rather than http) or you can host them on one of Vista's secure servers. To host content on a Vista secure server, contact Vista support:
How do I create a secure link to my survey?
Customizing the Survey Link in Email Invitations
Send a Survey