Here is the site I am working on: http://thegreatnessinyou.net.
This site is hosted with Network Solutions who is also the provider of the SSL for the domain. The only payment gateway used for this site is authorize.net. Once you get to the shipping page of the checkout process, the shipping page never loads the https version of the shipping page. I thought I could solve the problem by changing the url for the whole site to https. I intended to do this anyway and any url that I manually placed in the site (including the theme's css file) already uses https. Apparently changing the url of Wordpress to https doesnt work with Network Solutions.
Network Solutions tells me that I need to find out how to change the Wordpress url to https when there is a SSL by Proxy. I have no clue how to do that.
My goal is to get the shopping cart to work completely. It doesnt matter to me if the whole site is viewed under https or just the specific pages in the checkout process that require https.