You can enable SSL for particular page that will need https connection. Go to Actions->Title & Properties of the page and check Require SSL checkbox, this way you will have this page accessible trough https. If you have IIS settings that encrypts http pages to https or the reverse have in mind Sitefinity will expect http response from a page that doesn`t use SSL and https responce from a page that requires SSL becasue Sitefinity manages encryption and description of request when page requires SSL and another software or hardware device manages description you may encounter problems.
the Telerik team
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items