Media Temple DV SSL solution uses two different folders HTTP and HTTPS for site storage. Anyone know how this works? I can't run the site in two folders can I?
A suggestion, with a few caveats: If you're on a unix/linux host, and if there really is no difference between your http and https sites, you can do what I've done more than once.
Either myself on machines where I had access, or through the hosting Ticket system of your provider, get a symbolic link set up so that the https directory isn't a directory, just a link to the http directory.
When you get an SSL certificate, Media Temple will usually install it; then set your site SecurePages for the pages that you want covered by the secure login.
You don't have to put anything into the httpsdocs folder.