website integration

[gggie]

I'm a computer-savvy non-techie who is trying to integrate Website
Payments Pro into a site. I want to do a very simple implementation -
i.e., one page where people put in their info and specify how much
they're paying, and then a second confirmation page where they see
what they entered and then hit submit. (This is payment for past
services, so no need to have products or a shopping cart or anything
like that.)

Can someone direct me to some resource or guide that would help me
figure out how to do this? I get the feeling that this php script
will make this easier but don't really fully understand how yet. I
know some html, but no PHP. Is there a website that does something
like this already so I can see a model?

Thanks. Sorry if this is too basic a question.