InfoPath Dev

I have created a Forms Document Library which I have associated with a infopath Form, when I click new I always want that form to open in a Browser..

I am new to InfoPath. My requirement is one to many relationships. Step :1, Billing Information is single entry (customer name, Address, Phone) Step :2, Product information is multiple entry (Product Name, No. of Item, Cost). Product Information one or more than one entry. Product Information i have used Repeating Table. I try ...