You must go to the customize fields section of the Catalog in order to make sure that the fields you loaded are set to appear in the catalog and the cart,.
This is especially important for pricing fields.
Follow the instructions here Customize Fields and Catalog Views to make sure the fields are displayed.
If you don't see the prices you expect to see or prices as 0.00 - check your Pricing Policy and make sure the price you want to use is selected:
Go to Settings - > Pricing Policy