Once you've got your Paypal account setup and your bank account confirmed with them you'll want to put your website logo onto the Paypal pages that your customers will see when they are redirected there to complete their purchase.
To do this, first log into your Paypal account at their website.
1. On your My Account page you will see a button that says Profile. Click on the word Profile (not the other items that open below it).
2. On the new page that opens under Selling Preferences click on Custom Payment Pages.