This might be a bit of a long shot, but has anyone coded anything which allows you to use the Zen Cart product/code to create a page which allows people to send their own Credit Card payment.

That is, they enter their personal details, including credit card details, and they also enter an AMOUNT they want to pay you... and this gets submitted to you the same was as if it was an order from your cart?

This is to allow customers buying products from you which may not be in the store, but you can direct them to a link which allows them to still make a credit card payment to you online.

Am I making sense?

Thanks to anyone who may have any ideas for me