got it thanks
re. the billing address aspect, I am trying to figure out which elements to use.
I have added the extra columns to the db and on the confirm page in the store summary window, the original address elements have these values which seem to me to include both the billing (eg FirstName) as well as the shipping (eg FirstName_2) so not sure what I need to do with the new columns and values to bind to them:
<?php echo (WA_coalesce(array(WA_getSavedFormValue('CheckoutWizard_NewFromBlank_Default','First_Name_2'),WA_getSavedFormValue('CheckoutWizard_NewFromBlank_Default','First_Name')))); ?>
<?php echo (WA_coalesce(array(WA_getSavedFormValue('CheckoutWizard_NewFromBlank_Default','Last_Name_2'),WA_getSavedFormValue('CheckoutWizard_NewFromBlank_Default','Last_Name')))); ?>
<?php echo (WA_coalesce(array(WA_getSavedFormValue('CheckoutWizard_NewFromBlank_Default','Address_1_2'),WA_getSavedFormValue('CheckoutWizard_NewFromBlank_Default','Address_1')))); ?>
<?php echo (WA_coalesce(array(WA_getSavedFormValue('CheckoutWizard_NewFromBlank_Default','Address_2_2'),WA_getSavedFormValue('CheckoutWizard_NewFromBlank_Default','Address_2')))); ?>
<?php echo (WA_coalesce(array(WA_getSavedFormValue('CheckoutWizard_NewFromBlank_Default','City_2'),WA_getSavedFormValue('CheckoutWizard_NewFromBlank_Default','City')))); ?>
<?php echo (WA_coalesce(array(WA_getSavedFormValue('CheckoutWizard_NewFromBlank_Default','State_2'),WA_getSavedFormValue('CheckoutWizard_NewFromBlank_Default','State')))); ?>
<?php echo (WA_coalesce(array(WA_getSavedFormValue('CheckoutWizard_NewFromBlank_Default','Postal_Code_2'),WA_getSavedFormValue('CheckoutWizard_NewFromBlank_Default','Postal_Code')))); ?>
Cheers