I BESEECH THEE...A little help with Google Optimizer Good Sir or Madam?

I'm diving into split-testing and optimizing my company's website. I've had some minor successes with Google Optimizer but my programmer and I are coming up against some issues that are preventing us from split-testing certain areas of our website. Here are the specifics in my programmer's words:

"On our website we receive traffic across multiple subdomains and protocols, for example:

http://site.com
http://www.site.com
https://site.com
https://www.site.com

(these urls are only examples, no need to click them, because IDK where they go)

Google Optimizer forces us to choose A/B pages that are set with the absolute URL (including protocol and subdomains) Google optimizer then takes users who land on a specific page, and use javascript to either keep them on the page or redirect them to the absolute URL of the variant page.

We have a number of funnels we wish to optimize, as well as credit card funnels that we wish to optimize with split testing. However, these funnels require persistent user data stored in SESSION variables that move with the user from one page to the next. SESSION variables cannot be retrieved cross-site, and http is considered a different site than https and www a different site from just site.com, so if users come in on a different protocol then their sessions will not persist if google website optimizer sends them to an absolute URL with a protocol and subdomain that they're not currently on.

We can't afford to lose this user data, so what is the proper solution for dealing with this?"

Any help would be much appreciated.