I want to use the BS payment page, where BS info says to insert url of their payment page into zencart file but they cannot tell me where to put it, and I cannot figure it out.

The way I want it to work is that after prices+tax+shipping totals, the continue button should being me to the BS page and not to a Zen payment page. I also do not want to capture or store any customer information.

I can navigate the php files and can cut and paste as necessary if I only knew where.

Can someone please help?

I am using Zen 1.3.9, hosted on godaddy.