Not going to correct paypal page

Hi there,
Once checking out i want the user to be directed to a custom paypal page i created (has my logo etc)

At the moment it is just directing to a normal page and my logo is not there etc.

Can anyone help? Do i have to add some code onto the checkout button to make sure the user is directed to the correct page?

cheers,

gezzagregz

http://wordpress.org/extend/plugins/wp-ultra-simple-paypal-shopping-cart/