Magento - Paypal One click Payment - reference transaction

Project Description:
URGENT - START NOW...

1. ONE CLICK PAYPAL to be disabled for GUEST USERS. This button should not show on the detail pages unless the user is logged in:
test1 dot shop dot o s h o dot com / en / techniques-for-centering dot html

Once the user is logged in, the ONE CLICK PAYPAL should open PAYPAL WEBSITE and not add the product to the SHOPPING CART.

Make sure Paypal Agreement system works, so that in future the user can simply click on ONE CLICK PAYPAL and get charged without going to Paypal’s website.

See this:

http://www.magentocommerce.com/knowledge-base/entry/setting-up-billing-agreements-through-paypal

http://stackoverflow.com/questions/10559038/magento-process-credit-card-with-paypal-without-redirect-to-paypal

Similarly, this REFERENCE TRANSACTION should work from the SHOPPING CART EXPRESS PAYMENT of PAYPAL ALSO.


2. We have a page list.phtml which creates an in-memory xml of the Audiobook downloadbales.
We want it to fill up all downloadable items and not only limited to Audiobooks. Seems like some code adjustment is required.

Love,
Angel