Add more fields to payment page?

Greetings,
I am using PayPal Payments Std as my payment form with ZenCart. Is there any way to customize the page just prior to the PayPal payment page (IE. the "cart" page -- last page while still in ZenCart)...? I would like to add some custom form fields to gather some information about the buyer that will be passed onto the PayPal page and/or emailed separately by ZenCart's appl. to an email address designated in the ZenCart admin area.
Thx!
Julie (tillsey)

didnot fully understand what you wanna do.
could you specify an item's name,
add what ?,send what to paypal.and email what?

why you wanna pass customer's info to PayPal?

I think the payment of zen-cart is very good

I would also welcome something along these lines if I understand the post correctly.

I would like to add a field to capture the 'Date of the party' as this reassures customers that we have the info and also means we can prioritise urgent orders.
Thanks