access zen cart from html site?

Ok, total newbie question.

I have a small site that sells products on only one page of it. I'd like to hook into Zen Cart without having to use/see the templates. Basically, I'd like to have my normal html page with a "Buy Now" button on it and when the user clicks it, it uses the back-end Zen Cart stuff.

Is there any way to do this? Or do I have to create a template that looks exactly like my regular html page but is really a Zen Cart page?

Thanks for any help.

There are a ton of posts about this in the forum - search for 'back end'.

Short answer is that Zencart isn't designed to be a back-end cart for your current site.

If you're only planning to accept PayPal or Google for payments, there are several cart scripts you could use.

Any suggestions on which scripts?