Using Credit cards and Paypal Issue

I have used this software on another website before with no issues as i was just using Worldpay.

I have a different website where i am using Sage pay and Paypal.

I am using static add to cart buttons using the bindings so (NO SQL) is being used.

You cant when using the card select Credit cards and paypal because it only asks you for the paypal details.

So you have to use the credit card only option. When you put in the details and encryption for sagepay you get the option to use paypal too (makes no sence why you dont get this on the first option). I put in the paypal details and on the final step to creating the checkout i put in the website link and click finished so it creates the 8-10 php pages. normal checkout pages and the pp heckout pages.

When i upload the Wa cart and the pages created the site works. If i checkout through sage pay all works great. If i was to insted click the paypal logo on the checkout page the page diverts to pp_checkout_failure.php

You dont get to enter the details and you are not passed to paypal.

Can anyone help?

Thanks