Here you will find detailed examples showing you how to set up a shopping cart. Make sure you check the FAQs too, your question has probably been answered before.
Using a hyperlink
				Using an HTML form
				Field names
				Adding multiple items to your cart
Using a hyperlink
				Using an HTML form
HTML Customer receipts
				Language and currency
				Sales tax
				Customer messages
				mTracker affiliate program
				Shipping
Accepting card payments
				Configure the Custom gateway
				Using PayPal
Gift certificates
				Discount coupons
				Coupons API
Selling downloads
				Scripting dynamic website
				Remote call back to your website
				Link verfiication
				
				Orders API