Where is delivery address saved? +other eCart problems relating to address details

Our client has been in touch to say that, upon purchase via a credit/debit card (PayPal Payments Pro), the billing address is being displayed on the confirmation e-mail? I'm confused by this because we don't store the billing address to database, as far as I'm aware. What we store is the delivery address and simply pass the billing address to PayPal....don't we? :(

More confusing still, if a customer pays with their PayPal account the billing address is being saved to database, not the delivery address!

Checking wa_receipt.php, I note this section...

<div style="font-family:Arial, Helvetica, sans-serif; width:514px;">
<div style="border-bottom:solid 1px #F1F0EE; padding-bottom:10px;">
<?php if (!isset($_SESSION["PayPal_ECO_Token"])) { ?>
<h3 style="background-color:#F1F0EE;color: #353C48;padding: 5px 7px;border-top:solid 1px #BABDC2;border-bottom:solid 1px #BABDC2;font-weight:normal;font-size:16px;"><?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','First_Name_2')?"Billing ":""); ?>&nbsp;&nbsp;Delivery Address</h3>
<div>
<p style="color:#666666;padding:7px 14px 7px 7px;margin:0;"><?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','First_Name')); ?>&nbsp;<?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Last_Name')); ?><br />
<?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Address_1')); ?><br />
<?php if (WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Address_2')) { ?><?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Address_2')); ?><br /><?php } ?>
<?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','City')); ?><br />
<?php if (WA_getSavedFormValue('CheckoutWizard_Sharp_Default','State')) { ?><?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','State')); ?><br /><?php } ?>
<?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Country')); ?><br />
<?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Postal_Code')); ?><br />
<?php if (WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Phone_Number')) { ?><br />Telephone: <?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Phone_Number')); ?><?php } ?>
<?php if (WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Company_Name')) { ?><br />Mobile: <?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Company_Name')); ?><?php } ?></p>
</div>
<?php } ?>
<?php if (WA_getSavedFormValue('CheckoutWizard_Sharp_Default','First_Name_2')) { ?>
<h3 style="background-color:#F1F0EE;color: #353C48;padding: 5px 7px;border-top:solid 1px #BABDC2;border-bottom:solid 1px #BABDC2;font-weight:normal;font-size:16px;">&nbsp;&nbsp;Delivery Address</h3>
<div>
<p style="color:#666666;padding:7px 14px 7px 7px;margin:0;"><?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','First_Name_2')); ?>&nbsp;<?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Last_Name_2')); ?><br />
<?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Address_1_2')); ?><br />
<?php if (WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Address_2_2')) { ?><?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Address_2_2')); ?><br /><?php } ?>
<?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','City_2')); ?><br />
<?php if (WA_getSavedFormValue('CheckoutWizard_Sharp_Default','State_2')) { ?><?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','State_2')); ?><br /><?php } ?>
<?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Country_2')); ?><br />
<?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Postal_Code_2')); ?><br />
<?php if (WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Phone_Number_2')) { ?><br />Telephone: <?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Phone_Number_2')); ?><?php } ?>
<?php if (WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Company_Name_2')) { ?><br />Mobile: <?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','Company_Name_2')); ?><?php } ?></p>
</div>
<?php } ?>

</div>
</div>

Does this look right to you? Why does the first section have:
<?php echo(WA_getSavedFormValue('CheckoutWizard_Sharp_Default','First_Name_2')?"Billing ":""); ?>

FTP details are provided below. Thank you.
NJ

Sorry, below now. It seems that I can't create a private section in an initial post.
Thank you.

See PM

Have double checked the details and reset the password. Can you try that again?
Thank you.
NJ

EDIT: I'm obviously realising that confirm.php and pp_confirm.php are for Credit/Debit card payments via PayPal Payments Pro and PayPal Account Payments, respectively.

The PayPal Account confirmation page, pp_confirm.php, isn't saving everything I need it to, but I've noticed that the two pages are different. I think what's happened is that we were that focused on getting the thing working with Ray, at the time, that we forgot about this page.

This still doesn't explain why the billing address is being saved to database when people use their PayPal account - and therefore are arriving at pp_confirm.php. The address part looks ok on both pages, but maybe you'll spot something I'm not.

Appreciate the help, thank you.
NJ

Have you been editing our site Jason?
We are getting "Invalid Credentials" errors when people attempt to purchase - this is the problem Ray had already resolved for us in a two hour Premiere Support ticket so I am extremely alarmed that the error as returned.

Hope you can clarify what's happening. Thank you.
NJ

No, i have not been editing the site, I just now started looking.

Can you please create a $0.01 test product that i can use for testing of both the address and credentials issue, i think i'm going to need to put a couple orders through for troubleshooting that will need to be refunded.

http://www.ledwarehouseuk.com/LED-Lights-Bulbs.php?lbid=668

PS. Please be careful as we spent months with Ray getting this sorted. I'm very worried by it returning without us having made any changes.

I am asking Ray to look at the checkout problem, he is currently out of the office getting his car fixed, As soon as I hear back from him, i will let you know, then I can start looking at the other issue.

Thank you Jason. I'd appreciate an update as soon as possible.
NJ

Yes, Nathan, I understand, and had already planned to update you as soon as possible:

  As soon as I hear back from him, i will let you know,