I have a hosting package that uses a httpdocs folder for unsecure http content and a httpsdocs folder for secure https content.
Are there any best practices for installing and maintaining websites that uses this?

Which folder would I choose for installing?
What exactly would I be needing to put in the unsecure folder and what in the secure folder?
Would I be needing to change files in both folder when modifying a template?
Or add products and their associated images?

Also... do you have any suggestions in corresponding to my hosting provider to let me use one folder instead of two?