If you wish to calculate your shipping on a per product basis, you must first set your shipping system to Advanced.  From the Main Configuration screen click the General Configuration link.

Shipping Configuration Edit Screen
Per Product - Fig. 1A

Click the Save Changes button at the bottom of the screen and you will be returned to the Main Configuration screen.

Shipping Methods Setup
If you want to setup different shipper options for your customers to select from (ie Standard and Express) you  should first set those up in Shipping Methods. If you will offer only one method, then you can skip this step.

Main Configuration Screen
Per Product - Fig. 2A

Shipper Method Definition Screen
Per Product - Fig. 3A

 
Continue Per Product Tutorial Page 2