In order to make it so you do not process the transaction you only need to set the test mode in the Globals file. This will make it so that you do not process with the gateway.
Other than this you will need to remove the validations for the form elements on the checkout page, there are two sets of validations. The spry validations can be removed directly from the checkout form by selecting the spry box around the inputs from design view. Look at the name for that spry input and go to the bottom of the page in code view and delete the corresponding spry code. For example the credit card field has this spry associated to it:
sprytextfield2
You will need to find the script code at the bottom of the page for this spry element, it looks like this:
var sprytextfield2 = new Spry.Widget.ValidationTextField("sprytextfield2", "credit_card", {validateOn:["blur"]});
Delete this line of script from the bottom of the page to get rid of the spry validation for that field.
Next you will need to remove the server validation that occurs on the confirm page. On this page toward the top around line 125 you will find the server validations, just remove the one for the field you are working on, in the credit card number example you would remove this validation:
line 132: $WAFV_Errors .= WAValidateCC(((isset($_POST["cc_number"]))?$_POST["cc_number"]:"") . "","4:51:52:53:54:55:34:37:6011:",true,8);
Once you have removed the validations for these fields you are ok to delete the field itself. This will get you a checkout minus the billing portion. The users should get to the checkout success page when going through the checkout process.
On your confirm page and checkout success page you will want to re-arrange the display of the info you have and remove any reference to form elements or values that are no longer needed. If you need any other help with this just let us know.
