WebPlus X6: Paypal Buttons

Hello

I used to be able to use my own design "add to basket" and "view basket" buttons, and have not use the ones provided. I had a great photos that i converted into buttons.

I don't seem able to do this anymore now i am on Webplus X6. The 'upload own button" (something like that) seems to have vanished.

Can someone please tell me how i can use my own buttons that fit the design / theme of my wbesite rather than the ones provided.

Please help!! i don't want to have to use the really boring buttons provided!! :(

Thank you