If you read the thread, you would know that FEC was being redeveloped to remove the bugs and the current versions were deactivated on the site to avoid problems for Zenners.

That said:

v1.05 FAST AND EASY CHECKOUT FOR ZEN CART

  • v 1.04 15/10/2007
    • 1. Bug fix;
  • v 1.041 16/10/2007
    • 1. Bug fix;
  • v 1.05 23/20/2007
    • 1. Bug fix;
    • 2. Added ability to hide tpl_checkout_confirmation and display alternate text;
v1.04x were updates performed privately. Thank to Notus for developing this module along with Numinix Technology!

Here is a brief description of what the mod does now:

If one page checkout is not activated, then the module simply combines checkout_shipping and checkout_payment into a single page to increase the conversion rate for checkout_payment and reduce the number of clicks in the checkout process.

If one page checkout is activated, you have the option of hiding the text on checkout_confirmation and displaying your alternate text. The default is "Your order is being processed, please wait..." and then the customer is automatically redirected to the payment page selected on the checkout page. Remember that PayPal Express Checkout will not work unless you have added your API Signature information!

Supporting this module can be done in many ways. You can use the donation button on the Numinix Technology web page (50% of donations are forwarded to Notus so please clarify which contribution you are supporting if it is FEC in particular). The other way is to provide your conversion information from Google Analytics to this thread. You may maintain the privacy of your site by simply providing the following information:

Date 1 / Conversion Rate (Right before installing FEC)
Date 2 / Conversion Rate (i.e. one month later)

Also, any tips that can be done to alter the script to improve conversions even more (without eliminating checkout_confirmation - needed to process payments).