Setting Up Goals/checkout Funnel For One-Page Checkout

Does anybody have experience in setting checkout funnels/goals for cs-cart 4?

I tried it setting steps like so:

/index.php?dispatch=checkout.checkout&edit_step=step_one
/index.php?dispatch=checkout.checkout&edit_step=step_two

but it does not work (despite that when you type that into the browser it works - it goes to the desired step).

Any ideas?

Has anybody tried this plugin for enhanced e-commerce?

http://marketplace.cs-cart.com/add-ons/marketing/google-enhanced-ecommerce.html