Connecting to PayPal confusion

We have a website developed with Serif WebPlus ON THE LOOKOUT FOR. 0 with multiple form pages developed in frontpage. I have whatever I need with those forms except payment information. I also listed for a " Business" bill with PayPal. I just don’t know how to proceed now. I want and therefore hit submit for the bottom of my form page and also have the results get delivered to a specific email (which I do believe I learn how to do) AND then send the buyer over to Paypal to finish up by filling out their credit unit card info etc… I am assuming that that is definitely how it is effective & is the best method. I have know idea how to do it. I go through some tutorials upon paypal & got a lot more confused.
Thanks earlier.