From what I can tell I have zenpaypal up and running correctly. The only little issue I have is it locates the box with the pricelist, paypal button, etc justified to the left. I am wanting it centered like the rest of the info under the image. I can muddle my way through the php commands to center it, but am having a issue figuring out which file to make the changes in. Can anyone point me in the right direction?

zenPaypal has it's own CSS file (zenPaypal.css).

Change line 6 from

margin:0 0 10px;
to
margin: 0px auto 10px auto;

Thanks! That worked perfectly.