Help with checkout page.

[uoprophecy]

ok... if you go to www.uoprophecy.com and click on the donate page you can add items etc to your cart.

Well, when someone checks out and it re-directs them to the paypal checkout page to make there payment, is it possible I can add a message.

For Example

Please Include Character Name (Buyer Puts Name Here)

I can't find it for the life of me.

Thanks