Address missing when store owner tries to print labels from PayPal

This is a Zen-Cart running version 1.3.8a.

We are using the shipping module "PayPal IPN - Website Payments Standard"

The Address is missing when store owner tries to print labels from PayPal. When logged in to the paypal account, viewing funds received, there is a "Details" link and a "Print Shipping Label" button that should both show the address. Neither do.

I have turned on logging but don't have any full transactions yet. Here's a snip from one of the logs for a transaction that I didn't complete though:

Some information obscured. Where you see all the "X"s, there was real data.

Dec 14 2010 11:14 -- Keys for submission: Array
(
    [charset] => iso-8859-1
    [lc] => US
    [page_style] => Primary
    [custom] => zenid=6266XXX
    [business] => [email protected]
    [return] => https://secure.XXX/~XXX/?main_page=checkout_process&referer=paypal&zenid=6266XXX
    [cancel_return] => https://secure.XXX.net/~XXX/?main_page=checkout_payment&zenid=6266XXX
    [shopping_url] => https://secure.XXX.net/~XXX/?main_page=shopping_cart&zenid=6266XXX
    [notify_url] => https://secure.XXX.net/~XXX/ipn_main_handler.php
    [redirect_cmd] => _xclick
    [rm] => 2
    [bn] => zencart
    [mrb] => XXX
    [pal] => XXX
    [first_name] => Corry
    [last_name] => Wauford
    [address1] => 123 Somewhere Dr
    [city] => Valley City
    [state] => FL
    [zip] => 33579
    [country] => US
    [email] => [email protected]
    [H_PhoneNumber] => 813xxxxxxx
    [night_phone_a] => 813
    [night_phone_b] => xxx
    [night_phone_c] => xxxx
    [day_phone_a] => 813
    [day_phone_b] => xxx
    [day_phone_c] => xxxx
    [no_shipping] => 1
    [upload] => 1
    [currency_code] => USD
    [cmd] => _ext-enter
    [item_name] => Ink Canister
    [item_number] => Store Receipt
    [amount] => 7.48
    [shipping] => 0.00
    [tax] => 0.00
    [tax_cart] => 0.00
)

Any ideas why this isn't working?

Any ideas why this isn't working?
ZenCart does not control this. It supplies PayPal with the needed details.
It's up to PayPal to pass those details over.