Paypal Express shows empty order summary

[cclayton]

I am running oscommerce 2.2 with Dynamo Checkout and have just implemented Paypal Express Checkout, but the problem I have is that when you click on the Paypal Express button on the Checkout page it takes you through to the Paypal site but the Order Summary tab on the left hand side of the screen is completely empty.

 

I have tried a few addons that supposedly fix this but none of them appear to work for me. Can anyone please assist me in getting the Order Summary in Paypal to populate the Basket Data from the Checkout page?

 

Many thanks.

 

Chris