Great guide - very useful. One question, though. Is there a way to setup Ubercart to direct to a specific custom payment page that we have created at PayPal?

I know that I can make a certain paypal checkout page my "default" page, but I have several different sites making payments, and I want each to use its own custom page (with its logo). I have set up the custom pages via PayPal, but can't figure out how to get Ubercart to tell Paypal which one to use at checkout. I swear that I saw an option somewhere in the Ubercart settings to select the default "PayPal" style payment page or a custom one, but I cannot find it now.

Any ideas? I'm assuming that would be part of the variables sent to PayPal upon checkout...

Thanks in advance!